Thanks to Keanu's simplicity, I was able to make a good amount of progress on him within a short time.
In terms of whom he is, Keanu is one of those fancy men that you always find getting lucky down at the casinos. He's a hardcore gambler, and will do anything to keep himself looking attractive for the ladies. His main skill is going above the limits of "magic tricks" with a deck of cards that Keanu can levitate at will. These cards can act as a barrier to block a wide variety of attacks, and counter by flinging them back at opponents at high speeds, slicing through. Other hobbies include breakdancing and singing.
Keanu's first appearance in the Aozora's Adventure canon would be the Mega Man fan clone Rock Aozora as one of the pawns of Joker. The weapon Aozora receives from him is known as "Gambler's Cards", which is a take on all the sheild/barrier abilities that Mega Man can acquire throughout the ten games, the first of its kind being the Leaf Shield from Wood Man. After that game, he becomes loyal to the main protagonists, alike Fakhriya, Shinobu, and TaiYang. I could reveal more about how Keanu came to be, but that would cause me to mention Super Justin *shrug*.
One influence for Keanu's design was this car commercial that a new-deflunct Youtube user created a Youtube Poop of a few years ago, sporting the same colors (though the man represented had an afro, while Keanu has messy hair). On par with Gotobuki, Keanu was also based on part by one of my classmates from senior year, whom became a very big force to reckon with, appearing at every after-school event and devoting a large amount of his time to helping the school. We weren't off to a good start, but weeks passed, and I would develop a good friendship with him.
I'm not going to make any deadlines for myself alike before, so when Keanu's finished, he's finished.