Soujiro has three unique abilities:
1) the natural ability to use Battoujutsu, 2) his supressed emotions,
and 3) the natural speed of Shukuchi. Left alone in the chaos of his
foster family, Soujiro's mind has been entirely changed.
"If you're strong, you live.
If you're weak, you die" ~this is his motto/vow that Shishio
engraved into his poor mind
"I was smiling in the rain,
but in reality...I was crying." ~poor, poor, Sou-kun....