Hey all, new to this whole writing thing. So like I said in the summary, this is a VERY MASSIVE Experimental Alternate Universe Story. Though most of the AU is on the To-Love Ru side of things while the Kingdom Hearts stuff takes place as III. The Reason why I'm doing AU is because I can be more...experimental with my writing. Also, I will be using a concept from Dragonball Super and One Piece as part of the story and putting my own spin on them. So if your willing to be open-minded about my story, press on. If not, turn away now.

Also, I do not own any of Kingdom Hearts or To Love-Ru, All rights go to they're respective owners.

With that out of the way, welcome to darkness, enjoy your stay!

(10/19/18 Update: Updated the description of Momo's student clothes)

(10/23/18 Update: Very small grammar edit)

(4/9/19 Update: As of now, I've decided to drop the concepts of Dragonball Super I was planning to use. Trust me, it was terrible.)

Prologue - Stage 1! The Ominous Phase of Twilight!

The World That Never Was

Riku let out a sigh of relief when he saw the unconscious Sora safely in Lea's arms. He had just been told that Xehanort had created a "True" Organization XIII. Which consisted of thirteen versions of himself to make up for the thirteen darknesses that make up the X-Blade. Xehanort had planned to take Sora as his thirteenth vessel for his True Organization XIII and nearly succeeded until Lea showed up and saved Sora from Xehanort's dark possession in the nick of time.

But...

"We are out of time, neither the union of light nor darkness has been achieved, and we must all return from whence we came. But, the gathering of the seven and thirteen is nigh." the ringleader of the Thirteen Seekers of Darkness, Master Xehanort, stated.

Riku took the time to stare-down the villain's youngest incarnation, Young Xehanort. Meanwhile Lea was staring at one of the thirteen, with a hint of concern.

'Isa...' Lea thought as he gazed upon his childhood friend now turned vessel.

"Let us finish this, at the fated place, once your lights and my darknesses have joined together!" Master Xehanort exclaimed as he disappeared along with the rest of the True Organization XIII.

Mickey, the mouse that is also hailed as a king, could only look where Master Xehanort was standing before, mind racing on the conflict to come.

The City of Light - Radiant Garden

Cid Highwind grumbled as he stopped working at the computer of the Radiant Garden Restoration Committee HQ. Recently, stars in the sky have been blinking out faster than usual so Leon and the rest of the Committee (sans Merlin, who went to check on his homeworld after assisting Lea and noticing the stars blinking out) decided to go to Traverse Town to see if it was just their fears unfounded.

As it turns out, it was completely justified.

Traverse Town was filled with people who have lost their worlds to the heartless, it reminded them of when Sora went on his first adventure. However, this time they had more than enough resources so Leon and the gang have been transferring them over from Traverse Town to Radiant Garden via Cid's gummi ship, to further assist them from base. Recently, they have made a few round trips bringing people over.

'Who would've thunk one idjit can cause so much damage' Cid thought 'Xehanort you sonava-'

Before he could finish that thought, the door to the Restoration Committee HQ swung open.

"Ya took a while, how was the..." Cid began as he turned in his chair, but found himself stopping short when he noticed a boy on Leon's back.

This boy had very light-brown spiky hair, but it wasn't as wild as Sora's. He was wearing what looked like to Cid a white student shirt complimented with green pants and white student shoes. If a word could be placed to describe his outward appearance, it would be 'Average'.

"What's with the kid?" Cid questioned to Leon as Aerith also made her way inside.

"I'll tell you in a second, help me put him on the bed for now." Leon told Cid, while Aerith went to the bed in the back to move the various books that were on top of it. Leon moved toward the bed with the boy and Cid in tow.

"Where'd Yuffie run off to?" Cid asked as he looked at the door, expecting said cheerful ninja girl to run in anytime.

"She's helping the rest of the refugees get settled in." Leon answered as he and Cid helped put the boy in bed after Aerith finished clearing it out. As Cid was about to ask why they didn't help the kid get settled in like the rest, he stopped when he noticed something about him...

It was his eyes...

The boy's eye color was light brown-yellow. However, they seemed completely devoid of light and life. It's as if he wasn't even aware of where he was, the only indicator that he was alive was his steady breathing and very rare blinking.

Leon crossed his arms over his chest as he started to explain "We found him in an alley during our run through Traverse Town, he was just sitting there all by himself looking at the ground. When we tried talking to him, he wouldn't respond."

Aerith took this time to sit in the chair next to Leon as she started to speak, "When we tried to see if he can walk, he ended up tripping over himself and falling on top of Yuffie in an...awkward position." Aerith said as she finished her sentence with a giggle, finding Yuffie's reaction after said fall funny.

"Hm, is that right..." Cid pondered as he turned his head away with a raised eyebrow.

"He was the only person there who was like this, but we got a name from him eventually at least." Leon said with a smile.

"Really, well what's the young fella's name?" Cid inquired.

"...Ri...to..." said a new low voice, surprising the occupants in the room. They turned their heads to look at the boy who had sat up with his empty eyes fixated on them.

Troubling World - Sainan

A girl was currently looking outside the school window deep in thought. This girl had pink bob cut styled hair with two small white flowers on the left side of her hair. She wore a yellow female student blazer coupled with a short green checkered skirt. Underneath the blazer was a white student shirt, and at the neck of the shirt was a green bow. Her eyes were a radiant purple, but that wasn't the most stand out feature about her.

No, what stood out the most about her was the thin, long, very dark-red, almost black, tail that went down to her legs ending in a spade-like shape. She looks human, but she is indeed an extraterrestrial of this world. Her name was Momo Belia Deviluke, the third in line for the Deviluke throne.

However, that wasn't on her mind right now. what was on her mind right now was a boy.

A boy that has been missing for two weeks now.

'Rito-san...' she thought as she closed her eyes.

'Where are you?...'

And Chapter Complete!

I won't lie, Chapters 1 to 3 are set-up chapters. From there, the story will truly commence.

The Sainan portion of this chapter takes place two weeks after the Radiant Garden and TWTNW portion, if you were having trouble. I didn't specify time-skip in actual story because I thought It'd be Immersion breaking.

Also, The events that happened in the TLR story before this still take place, but with differences you'll see later.