Ironically enough, Yuichi IRL has a wife... and kids.
A far cry from his younger days where he declared something to the effect of "marriage is for losers" before promptly being kicked out of the Wada household by Mrs. Wada
That she does. Given her character bio and what she says in the game, I suspect that Crazy Mita didn't directly kill and abuse Tiny Mita, but instead indirectly did it through a plethora of abusive and violent players.