Zetsubo's personality is not that well explored in the original creepypasta, but was revealed some parts of it. Zetsubo is considered by the other Guardian's "older sister" (besides yokubo and kyofu), Zetsubo is rather ghoulish in apperence, looking rather dead, eyes compleatly red, and wears a mournful kimono robe all the time. Whenever Zetsubo appears, it starts to rain,a reference to her sad nature. Zetsubo wishes to drown whoever defy X in endless Sorrow and sadness.