自分's steps are filled w/ silent conviction, a mask of sanity/calm on his face hiding his insanity—his madness to break his limits. Each second 自分's body breaks is pure joy to him as he quickly recovers, getting stronger as he fights. Swordsmanship is 自分's joy, 自分 doesn't care no matter how much he loses—as long as he gets to break his limits, learning from 相手 as he breaks his own body.