Disclaimer: I own nothing, this is purely a fanfic for enjoyment.

Cross-over from various games, books, anime, manga, and movies.

The familiar characters you see here belong to their respected authors and owners.

"Speech"

Time*

Noise*

(Location)

DATE OF EDITING: 8/16/20

Arc 1 - Chapter 1: Well, I'm Alive

(Unknown Cave)

-Cú Chulainn's POV-

For some unknown reason, I have mixed memories of the same person, which is weird by itself, but the mixed memories contain different beginnings and endings, even the afterlife, much to my shock. This is now beyond weird, but then again, I've just discovered that I'm a legit living, breathing, [Heroic Spirit]. So, maybe having mixed memories of the same person wasn't that weird.

Nah, it's still weird in my opinion.

Then again, I could just think the whole weird and crazy situation I'm having is due to possessing a [E-Rank: Luck]. Though I wonder if being alive again is a bad thing or not, knowing my luck and like the other alternative of myself. It might be bad later on.

I, Cú Chulainn, formerly known as Sétanta, have somehow gained a new life, and I seemed to have all my counterpart's [Skills], [Magecrafts], even the battle gears they use along with my weapon: [Gáe Bolg].

And suddenly, things got a lot weirder. Once my thought head into the [Gáe Bolg] had caused some foreign knowledge of how to create multiple [Gáe Bolg] without any price at all. Not even using a single drop of [Prana]. This is completely weird, but at the same time cool due to the fact that I am the only out of the other alternative version could wield multiple [Gáe Bolg] instead of just one.

An advantage I'm willing to use against a worthy foe. Plus, it will save me the efforts of having to deal with the chance of [Gáe Bolg] being stolen, destroyed, or I've somehow lost it somewhere and will have to find it unless I want to get a new one. Something my alternative versions couldn't do as all of them got the [Gáe Bolg] from our teacher, Scáthach. While I, on the other hand, don't have such problems.

Either way, with all these mixed memories I've gained from the [Heroic Spirit: Cú Chulainn].

I would have to say. Yikes.

Out of all the different versions of Cú Chulainn that have in common. He has the worse luck ever and very often ends up getting killed without having the ability to use all his strength. Like seriously, most of the timeline related to the [Fifth Holy Grail War].

Cú Chulainn was either forced to fight without being able to finish off the enemy whenever he got the chance to or he wasn't allowed to use everything he has to kill the enemy [Servant].

Hell, even I can tell that Cú Chulainn is a monster in his own right, but due to possessing bad luck, which I know for sure, I have the same luck as well unless there is something I haven't discovered that would change the [E-Rank: Luck]. Returning back to the topic on hands. Cú Chulainn continues to die in the most tragic ways and with a very rare selected of Cú Chulainn have managed to defeat all the enemy [Servants] on his own, but still end up getting killed somehow by an unknown factor like a hidden [Servant] from the previous [Holy Grail War] or something else entirely.

For these moments for Cú Chulainn, they were killed without even finding out what killed them, not even finding out if it another [Servant] that somehow survived from their last battle or something.

Nonetheless, that didn't matter in my eyes. For these Cú Chulainn has managed to solely kill [Berserker] of the [Fifth Holy Grail War]. Otherwise known as Heracles the greatest hero in Greek mythology. A fellow [Demi-God].

Not to mention, there in these mixed memories. There are some Cú Chulainn, who have fought an army by himself while his strength was weakened due to breaking multiple oaths that the enemies forced Cú Chulainn to break. In the result of Cú Chulainn having to fight his last battle while not being at full strength. Talk about a monster in his own right and the fate of those last battles could have been changed if Cú Chulainn had fought with his full strength.

As for me, I somehow got all the different versions of Cú Chulainn. Be it the [Lancer-Class], [Caster-Class], and even the [Berserker Alter-Class]. Including all the memories, experiences, etc. Pretty much everything. Including outside of those [Servant Classes].

This made me feel like, no. I am the strongest Cú Chulainn there is. If that wasn't enough, I can feel my [Prana] being a hundred times bigger than the average summoned [Lancer-Class] Cú Chulainn.

So if I wanted to, I can spam Cú Chulainn's [Noble Phantasms] like it could go out of style.

Also, I could say I would be able to defeat all these [Servants] in the [Fifth Holy Grail War] by myself, even if I do get summoned into any [Servant Class] other than the [Lancer-Class]. Not to mention, I'm no longer bound to any oaths made by all alternative versions of Cú Chulainn. Giving me a fresh new start. Hell, I could even use my old name before Cú Chulainn if I wanted to.

Now, if I could only figure out why I was created. Yes, created.

Because I did not experience the whole rebirth kind of thing, not did I possess any memories of this body growing up in this world at all either. I literally just popped into existence in the middle of nowhere; well, I'm in a cave of some sort from what I could tell. But, that still doesn't mean I know where I am and how I got here in the first place.

With all the memories I got from the [Heroic Spirit: Cú Chulainn]. I would have to say, that I wasn't summoned for any [Holy Grail War], thanks to the Gods for that. Because I rather not get killed in the most tragic ways like the other Cú Chulainn. Barely any of them have a good life during and after the [Holy Grail War]. If they survive the [Holy Grail War] that is.

So, I'm technically going blind at the moment until I find a native of this world to explain to me where I am and what kind of world it is.

Seriously hoping the native and I speak the same language, because if not, I'm screwed until I learn how to read, write, and speak the language of this world.

Talk about bad luck.

I let out a tired sigh, wondering if I should go by as Cú Chulainn or not. I can't call myself Lancer due to not being in a [Holy Grail War]. Well, I can if I wanted, but it will be a bit confusing too, since I can also go by as Caster, Berserker, etc. Hell, I could go by my old name too. But, I got the feeling it would feel a bit too weird being called by my old name when I'm, included the mixed memories, are too used to being known as Cú Chulainn.

Then, I decided I may as well go with Lancer since I'll mainly use [Gáe Bolg] as my main weapon to fight with anyway. If I feel like it later on. I can just change my name to something else.

On to other things. I just realized that due to being the strongest Cú Chulainn. I kinda don't have the drive to seek out to fight stronger opponents for the time being. I've already experienced all the fights I could have dreams of thanks to the countless Cú Chulainn merged into my very being. It would be a shock to find a very powerful foe in this world to fight against.

Yet, if there is one, then that's fine. Reignite my fighting spirit would be alright in my book. But, maybe I should just take it easy in this new life of mine.

Summoning [Gáe Bolg] or creating, whichever it is. Bringing out a familiar red cursed appears in my right hand, with a habit from countless lives. I spin it around with one hand, then toss it in my other hand before return it back to my right and stop spinning [Gáe Bolg] before resting it on my right shoulder. All done in a matter of seconds.

Honestly, I shouldn't bring out [Gáe Bolg] in the open since it's currently releasing a heavy amount of bloodlust. Something I didn't expect to do at all, since the other [Gáe Bolg] in the mixed memories wouldn't do such a thing unless using the [Noble Phantasm]. So, it's a little weird for the [Gáe Bolg] I'm holding is releasing such bloodlust.

But, I just toss it up due to being unique like myself.

I decide to keep it out for a bit since who knows what things are living in this cave. Who knows if there are strong foes living in this cave, where I may need my [Gáe Bolg] to fight with.

Plus, knowing my luck, I should already expect the unexpected of having to fight with something in a matter of time before I find my way out of this cave.

Looking around. I see the walls are light green colored and wonder if I'm in an underground cave. If so, it's going to take me a while before I could reach the surface.

Walking around as I kept my guard up. Questions began to appear in my head.

Like, why was I created with countless of Cú Chulainn merged into a single entity aka me?

How come I have the ability to switch battle gears belong to other alternate versions of Cú Chulainn?

I pause for a moment to check what I'm wearing right now, to see it just a simple white T-shirt and black pants, with a matching pair of black boots.

Resume walking. Another question is why I don't have any problems with having so many different sets of memories shoved into my head or is it because it's too early before the hidden side-effects to appear?

So many questions, but no answers to be given.

"AAAHHHHHHHHHHHHH!"

I blink when I heard of someone screaming in fear. Ironically enough, I wasn't that surprised. Since I've already expected there will be others in this cave and must have come across a problem.

I glance at the [Gáe Bolg] resting on my right shoulder.

There is also the chance of the person screaming just now is due to feeling the bloodlust coming from [Gáe Bolg] must have scared them.

With 80% of the Cú Chulainn being a hero. I shouldn't put my nose into other people's business since it might end up with something later as a result of making an oath. But, with my honor and pride, along with other things that made me; well, as Cú Chulainn. It would be shameful of me not to check the situation out first before deciding if I should help out or just leave.

A quick burst of speed, no usage of [Prana], I reached in time to see a white hair and red eyes boy was about to be attacked by a cow head humanoid monster, where I knew exactly what this monster is. A Minotaur.

I raise an eyebrow at this, but that was all I did before throwing [Gáe Bolg] straight at the Minotaur, piercing the monster's head and dragging the head into the wall due to the momentum of the thrown spear briefly spread out enough to pull the Minotaur along with it into the wall. Blood already begins to leak down from the head from the back and the front.

On the side near the white hair boy. I see a cute blonde hair girl standing there with a blank expression.

I can guess she was about to save the boy from being killed by the Minotaur, but I got to it first before she could.

Honestly, I think I did the boy a favor. Because his pride as a man would have been hit due to the fact, that he was saved by a girl. Not being sexist, but lots of males have pride, and knowing the boy, I can say I helped save his manly pride. Unless he is one of those boys with weak self-esteem and/or the concept of pride would be a bit different compared to other males.

Either way, I saved the kid anyway. No point in thinking about it anymore.

I widen my eyes a bit, to see the Minotaur's corpse burst into a black mist and disappear a second later. Making it look like the monster wasn't there, to begin with. If it wasn't for the blood strain everywhere as proof that the Minotaur was actually there. I would have thought I was placed under an illusion or my mind playing a trick on me. Wouldn't be a surprise if I begin seeing things that isn't there, with my existence is just weird by itself; therefore, anything could be possible with me as time will tell.

I casually walk towards the two, causing both of them to tense up. Making me wonder if these two thought I was about to fight them or something. Honestly, seeing how I easily killed that Minotaur while the boy was having a hard time fighting it or lack of fighting and more on the line of shaking in fear before the Minotaur. Either way, the boy won't give me much of a fight at all. The girl, on the other hand, might give me a better fight than the boy with the way she holds herself, but I won't expect much going by the fear in her eyes.

Reaching out with my right hand to grasp the shaft of the red cursed spear, then pull it out of the wall, where I saw the two flinch.

"So..." I look at the two. "Do you have any ideas where we are? Because I'm lost." I felt no shame asking for help. As I place [Gáe Bolg] on my right shoulder again while staring at the two with a bored look, but this just caused the two to flinch again and I begin to wonder if my eyes are causes of making them flinch, since it shouldn't be [Gáe Bolg]'s fault. Seeing how it's still releasing the same rate of bloodlust this entire time.

"Uh, yo-you-" The boy tried to answer, but continue to stutter.

"Speak up, lad." I said in a strict, yet in a bored tone, causing the white hair boy to flinch again.

"We're on the 5th floor fo the dungeon!" The white hair boy shouted in fear, causing the blonde girl to tense up and look ready to fight or flight at any moment now.

"A dungeon you say?" I rub my chin, with my free hand. "And just where is this dungeon located exactly?"

"It's located under the Babel! The name of the tower located within Orario that was built over the dungeon beneath it!" The white hair boy quickly answered in fear.

I nod my head a few times, "Yeah, I have no clue where that is. Do either of you two know a way out of here?" I really hope they do unless these two live in this cave, because if so, then I wonder how.

"Yes, sir!" The white hair boy shouted instantly, causing me to have a twitchy eye with how loud the boy is, but I can't really fault him for it. Since I'm technically scaring him badly, both by my [Gáe Bolg]'s bloodlust and maybe due to my eyes being scary. Though, with [Gáe Bolg] still releasing bloodlust. It might be the red cursed spear that pushing the two at the edge.

So, I dismiss the [Gáe Bolg], causing the two let out a sigh of relief the moment [Gáe Bolg] disappear along with the bloodlust it was emitted to the surrounding.

"Alright, lead on." I said to the boy before looking at the girl. "You coming along or you have friends waiting for you to meet up with?"

The blonde hair girl shook her head, that she doesn't want to tag along or she doesn't have any friends waiting for.

I raise an eyebrow at this, causing the poor lass to tense up again.

"I have friends waiting for me." The blonde hair girl replied in a quiet voice, too afraid to speak out loud.

"Alright then." I nod at the blonde hair girl, then look at the white hair boy. "Lead the way. I'm sure the lass is strong enough to protect herself while she reunites with her friends."

Of course, I can see that the girl is trained and could use that sword of hers to kill. Unlike this boy here, who barely has any training from what I could tell, but I got this feeling this kid could become someone great if trained right.

I watch the white hair boy, who is still scared and quickly speed walk towards the direction to the exit of this dungeon.

A few hours later*

(Orario: Dungeon - Entrance)

-Bell's POV-

Crap! Crap! Crap!

These are the thoughts going through my head for the past few hours.

It was lucky for me to even remember the pathways to the exit of the dungeon or else I would have angered the beast behind and would have torn me apart if I continued to stall without knowing how to leave the dungeon.

By now, I swear I may have sweated more than I could in a lifetime, with how my entire clothes are wet from the inside and sticking to my skin uncomfortably.

All I wanted was to become a great adventurer, seeking fame and fortune, where, in the end, I would have an encounter with a girl in distress. As she is being attacked by monsters and this will allow me to heroically come in, to kill all these monsters, then at the end. The girl would fall for me and my chance of having a cute girlfriend would be for sure.

Sadly, this didn't happen at all the moment I enter the dungeon. Instead of rescuing the girl. I was rescued instead and by a beast in human skin too. At the very least, I got to keep what left of my pride as a man than being saved by the girl, a cute blonde girl that is.

However, right now, I have to do my best to lead this beast out of the dungeon, and now that I think about it.

WHAT THE HELL AM I DOING?!

I'm literally leading a wolf to a group of sheep to be eaten!

I don't know about those other high-level adventurers, but I got the feeling they would be killed by this beast with ease.

Kami-sama! Runaway! There is a deadly beast behind me and close to being released onto the world! Please run away and live! I won't be able to make it!

I begin to mentally cry to myself while praying for Kami-sama to hear them as a way to warn her about the danger that is about to happen today. I've already accepted my fate and just hope a hero, a true hero, would rise to stop this beast from taking over the world.

"Hey, lad." The beast behind me spoke up, causing me to sweat even more than already, but at least I didn't piss myself... yet.

"Yes, sir?!" I cried out in fear, not noticing the way the beast sighed in frustration as I was too afraid to hear it.

If I didn't know that the beast could outrun me easily, then I would have long by now, ran out of the dungeon after leaving this beast behind and warn everyone about it before it was too late and the beast escapes the dungeon.

At this point, I feel like this beast was spawned by the dungeon and something went wrong in the process, where the beast gains control over its own life and the desire to get away from the dungeon's influence. And what's the best way for that? Get out fo the dungeon.

Oh, how I wished that I had entered the dungeon yesterday or tomorrow instead of today, where I ended up meeting this beast.

"How long until we reach the exit?" The beast asks me, causing me almost to faint right there and then, but through sheer willpower, I made sure not to, and also because I have a small hope to get everyone I know and love to escape from Orario.

"We're close to the exit, sir! We just need to go up these stairs!" I feel like I had just betrayed mankind for telling this to the beast.

"I see..." The beast mumble to itself.

I'm sorry! I'm sorry! I'm sorry!

I began mentally apologizing for all the countless lives about to be lost due to my cowardness not to face this beast to my death. Even if I can't take the beast down, but at least, I would have the honor to know that I manage to stop the beast from escaping the dungeon for a bit longer.

Slowly, up ahead, I see the light and for once. I wish the light would disappear! Because in a matter of minutes, the beast will be free and cause havoc throughout the world. And it will be all my fault!

Kami-sama, if I get the chance. I will come to you for you first and do my absolute best to get us out of here!

I'm determined to save the one person that believed in me, to become a true hero.

Some hero I turn out to be... I thought with bitterness.

A few minutes later*

(Orario: Babel - First Underground Floor)

-Cú Chulainn's POV-

Upon climbing up the last stair, leading us to a big circular room, with multiple columns at equal intervals and above is a beautiful azure painting of the sky that resembles the real one. Along the circle are gentle stairs that spiral down into the dungeon from which the boy and I came from.

"Huh, this is a nice place. Too bad it isn't my style." I mumble my thoughts out loud, where I notice the way the boy trembles for some reason upon hearing my words.

I just ignore it since it is not worth the trouble of figuring out why.

"Now, where the exit from here?" I ask the white hair boy, who started trembling even more now and slowly lead me to the exit.

But, why do I get this feeling that the kid is heading to his death or something?

"Something wrong, lad?" I ask with concern, but all I got was a quick shake of his dead. Making me raise an eyebrow at this; however, seeing how the kid doesn't want any help. It's better not to push the kid. Plus, it's not my business if the kid doesn't want my help.

Soon, both the boy and I head to another set of stairs up to the next floor and I wonder where all the people. As so far, I haven't seen any other than this kid here and that blonde hair girl. But, I could guess there aren't many claiming the stairs during this time.

"Let's see what kind fo place is out of this dungeon." I thought out loud, ignoring the way the kid is shaking like crazy now the moment we enter the next floor.