A great idea but the execution could have been better.

please update

Mmh I know it is a bit late, but i found this story only a few minutes ago.
As asked, i am going to review:
Lets start from the very beginning; the Big Bang...kidding, the cause of death.
As much as i find it interesting, the fact that he fought Gaia making his soul displaced kinda does not make sense. Still, you have already a lot of reasons to choose, for example he was less than a meter away when Kronos died for good, he lost his Protection of the Styx, OH, a perfectly canonical one! when fighting in Tartarus the lady of the poisons he described as something that shattered inside of him, something that might have been exacerbated by the air of tartarus. He fought Tartarus and used the doors of death, and his blood was used to ress Gaia.
If you dont want to choose just say that the whole thing was the cause, it is certanly better than "fighting Gaia", remember that both camps and all the seven fought her.
Now, the way you started the first chapter was masterfully done, you really captured the essence of PJ here, it was like opening one of RR books (except the chibi part)
The blessings are a little too far fetched, and the one you said made him create every weapon is way too OP.
Not only that, but summon the ingredients? Coca Cola? do you realize that you have just satisfied every need he can have? Hunger, Thirst, Protection, Armor,...he doesn't even need to go to the dungeon. I suggest to put at last a limit to that, that might increase with his MP or level
Before commenting on this, remember how magic swords work in Danmachi; a few uses and the sword break, hell it is Crozzo dream to make a reliable MS. Instead make Anaklusmos be able to always reach him, even in the new world.
As for the whole pantheons...it is really far fetched.
I do not know what you have written for the next chapters, but I believe a much more realistic idea would be to "bless" him to have him retain his memory through Rebirth (remember that his soul should be tossed in the Styx before that), however the Falna is basically the story of the Adventurer, as such remembering his past made it crystallize as a skill/s or ability/ies.
I liked how he treated women.
It is strange he didn't comment on his GP's name, i mean, Zeus?
As for his grampa death i suggest to just say he died, if you really want saying that someone else said that he died in the forest, or somewhere else, without Percy seeing the corpse (remember that his GP is Zeus, as such probably one of the gods that died fighting the black dragon).
to make a good sword in that conitions you need at last a week, he couldn't have made Anaklusmos in four hours.
-chapter two-
Unsure about the whole hangover thing.
I suggest to not put Flashback and Flashback end as the cursive did its work, instead put a reaction to that memory, for example, a smile formed on his lips, he shock his head in remembrance, etc...
I liked how he still had dyslexia,
He should have scringed remembering his first encounter, Mama Mia didn't say its name, just its race/monster type.
liked the rest.
Sorry for the long review, and thatnks for the story

I need more!

Already thinking about chapter 9 when we're still in chapter 2 is kind of getting ahead of yourself aren't you?( Unless you already wrote chapters 3-8) nevertheless the writing seems fine though making it last longer like atleast 3k would be nice.

The story seems to be rushing a bit even though understandably it's hard to not rush a prologue to set the world up for the actual story

Not bad

Ok will percy still have his water manipulation and his horse speaking?

Oof rly bell?
U need a familia

Nice

Bell, would you rather be called little rabbit or your old nickname, seaweed brain?

Nice that he's still respectful of women. Put your amazing cooking skills to use, woohoo! I don't actually mind OP characters as long as they make sense and the way they obtained their power is logically acceptable. Take Harry Potter for instance. Fate, Magic, Death, etc. blessing him for his next reincarnation? Fair enough. Norse Pantheon that came from nowhere and suddenly interested in Harry and want to bless him? Uhh, that's stretching it.

I'm surprised Syr hasn't inquired on Bell's skills. In canon, she was a curious girl who wanted to be kept updated on her crush's accomplishments. Maybe after breakfast? Ryu is definitely gonna reanalyze Bell after seeing his practice forms. Cause for a young newbie adventurer, being able to fight that way suggests either prodigal talent or harsh real life experience.

I LOVE IT IT IS SO GOOD man i can't wait to see the next chapter you rock

Nice to have you back ! Was that Freya he bumped into ? Thanks for the chapter and keep up the good work ! :)

This is opening out to be a beautiful and great story, keep it up. I'd love to see what comes next.

Hmmm, need more content to be sure if i like it or not. Love the premise, Bell as a percy reincarnation works really well. But this is just too short to really see. Looking forward to more.

Please don't have him join anyone!
Ty for the chapter