Fanfic idea for sale: Kingdom Hearts and Legendz Tale of the Dragon Kings

Hello, this is the first fanfic idea I'm selling to someone who would love to make it. It's a crossover of Kingdom Hearts and Legendz Tale of The Dragon Kings (2004 anime), so anybody can take it.

Here are the ideas

It takes place after Kingdom Hearts 3 Remind.

Sora wins against Yozora, and a portal appears under Sora. And out of a warrior's respect. Yozora attempts to rescue the keyblade wielder, only to be too late.

Sora is aged down to a middle schooler (around Shu, Meg, Mac and Dino's ages)

He drops down from a portal under Halca Hepborn, who was floating from the wind on her motorcycle and instantly drop down in the New York waters scaring the woman.

Sora wakes up a few hours later, where the sun was setting as he was in a room he doesn't recognize. And when in front of a mirror, notices he aged down!

After meeting officially with Halca during dinner, she hears about his story. And instantly trusts him (hey, after being in the air for a year or two on your motorcycle with no food or water searching for figures containing mythical creatures. Nothing could faze you)

under a cover story, Sora is a nephew of Halca. And both go to Shu, Meg and Mac's school.

Sora becomes interested in Legendz as he sees two kids playing.

Instantly befriends Shu, Meg and Mac.

after a chase with a purple haired woman (BB) and her henchmen, Sora gives chase. (Despite he was de-aged) and wants to protect Shu from dangers.

After the summoned goblin, out of instinct. Sora summons his keyblade to defend Shu (no heartless will appear in the fic, but Sora's instinct still kicks in.)

Both Shu and Sora have gained talispods.

Eventually, with Sora correcting Shu's 'Debong' mistake. Shu is able to summon his Legendz, with Sora in awe… before it became a small mouse like creature.

Sora's Legendz is either a wind Legendz or light Legendz (sky, meaning a wind Legendz, or him being a warrior of light) you can choose on what his Legendz partner could be, maybe lion like of you want to. (Referencing his design when the first game was in development, and his lion form in the Pride Lands)

Sora's Legendz partner can be able to use his keyblade, but only for a limited time before it goes back to Sora himself.

Shiron interest the keyblade wielder, due to a strong power inside the Windragon. Feeling like he should be scared. (But due to how the blue and white dragon's personality, it fazes out.)

The keyblade wielder is wanting to help Dino's situation with his family.

Sora is able to help calm Meg down at times. In fact, they both love to take pictures. And her Legendz partner, Zuou. Is able to befriend Sora due to their child like personalities.

Is instantly good friends with Mac, as Sora goes all big bro to the kid. Sora's relationship with his Legendz partner, Garion the Griffin is pretty rocky at the start (because of reasons, if you seen the show.) and the griffin calls Sora a cockroach. As the keyblade wielder is from a whole other dimension! With Sora giving a retort to why Legendz are in the world as well.

Is taken in a liking with Greedo, Wolfy and Leon, due to how close they are and reminds him of himself, Donald and Goofy. And wants to help Greedo as well, since they did lose someone close to them. (Greedo's past saga, Selba. And Sora's friends before overusing the Power of Waking.)

Is very cautious of Ranshiin, due to how powerful the dragon's darkness is. And the dark Windragon is also interested in the Keyblade Wielder's position as if he wasn't suppose to be there for some reason.

with Sora being in the picture, Halca's morality stays good. (For spoiler reasons ((yeah, for a twenty year old anime))

Riku and Yozora might be there as well.