|Tatsunami Ittousai辰波 一刀斎|
|Hair||, Blond, Short|
|Clothes||, Bondage Harness, Fur Coat, Glasses|
|Personality||, Distrustful, Rude, Short-tempered, Stoic|
|Role||, Assassin, Bodyguard, Rival|
|Visual novels||Main character - Yo-Jin-Bo ~Unmei no Freude~|
|Voiced by||Ogihara Hideki|
Ittousai's an old acquaintance of Yo, Jin and Bo and their rival. He's also hired as a bodyguard but is seen by the others as nothing but an assassin or a sociopath.