Ah, I'm sure I could handle this. Took me a while, but here is my CS. Be sure to let me know if I messed up anywhere:

[u][b]Name:[/b][/u] [b]Masaru Takahara[/b]
[u][b]Age:[/b][/u] Mid-20s (?)
[u][b]Gender:[/b][/u] Male
[u][b]Appearance:[/b][/u]
[url=http://kyo-akemori.deviantart.com/art/LIVE-A-LIVE-Masaru-Takahara-464811500][img]http://fc05.deviantart.net/fs71/i/2014/182/8/c/_live_a_live__masaru_takahara_by_sqexgengoro-d7oqiuk.png[/img]
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[u][b]Canon, AU, or OC?: [/b][/u] Can[s]n[/s]on
[u][b]Universe of Origin:[/b][/u] [i]Live A Live[/i]
[u][b]Personality:[/b][/u] To say Masaru is obsessed with STRENGTH would be the understatement of the century. The man thinks of STRENGTH in all its forms, physical and mental, as the be-all and end-all of his existence. Consequently, he comes across as somewhat absurdly macho to a lot of people (but not in a loud way), demanding that things be done in a STRONG and POWERFUL manner, and naturally, is quite short-tempered, slightly abrasive to people he doesn't trust, and takes things a tad too seriously (which makes regular conversation a little difficult at times). That being said, he is also an honourable fellow who would never go full-power against someone weaker than himself, or kick an opponent when they're down; he views such things as cowardly and thus, a sign of weakness. He is, at heart, a good man who values strength through knowledge and experience just as much as physical strength, if not more so.
[u][b]Abilities/Weapons:[/b][/u] Combining raw strength and techniques borrowed from the six masters, Masaru is a formidable hand-to-hand combatant, at inexplicably superhuman levels. For example, he is able to rush at blindingly fast speeds for brief moments ([i]Tsuda, Abise-Geri[/i]), punch and do lariats with enough force to create small tornadoes ([i]Aloha Clap, Max Bomber[/i]) and strike the ground hard enough to shake the earth and stun enemies without breaking his own fist ([i]Earth-Rending Fury[/i]); though even without these abilities, he is a very skilled and diverse mixed martial artist. In addition, he has remarkable skills of observation, memory and tactical analysis, through which he can borrow even more hand-to-hand fighting techniques. Even he isn't sure how he can do all of this, though he's speculated it might be [i]Ki[/i] Manipulation. Not that he really cares.
[u][b]Backstory:[/b][/u] 
Like many boys, Masaru wanted to be the absolute, unquestioned strongest fighter on Earth; not just in body, but in heart and mind. But while most boys eventually abandon such macho aspirations to instead become doctors, engineers or, heavens forbid, politicians, Masaru chose to see his dream to its realisation, even after he got laughed out of the gym a few times for his lofty goals. Spending a considerable sum of money, he travelled the world, learning the best there is from fighting six martial arts masters and combining it with his own self-taught style, until he reached his peak by defeating the infamous Odie Oldbright, who had previously murdered those same six masters in cold blood to prove his own strength.

This is where things get strange. After defeating Odie, he was spirited away to a realm outside of space and time, ruled over by the time-travelling Demon King Odio; Odie's true form. With the help of a Caveman, a Kung-Fu Instructor, a Ninja, a Cowboy, a Teenage Psychic and a Robot, he was able to defeat Odio and return to his own time, whereupon he chose to keep quiet about the whole ordeal.

That is, until he found out about multiversal travel following another mystery teleportation accident. Having declared himself the strongest fighter on Earth, he then decided that wasn't good enough and instead sought to be the strongest in the entire Multiverse. A tall order, but one he hopes to realise in the same sort of manner as before; by seeking out skilled opponents and challenging them. Plus, this time he has more money thanks to his earlier exploits. He's pretty popular in Canada, for some reason.
[u][b]Faction:[/b][/u] Factionless

[u][b]Theme Song:[/b][/u] [url=https://www.youtube.com/watch?v=tm70W_vYzhY&index=6&list=PLD7492B33ACAD8E31][b]Ultimate Strength ~ Victory Road[/b][/url]