As almost constantly seen in the short time since her introduction, Hiyori is unusually short-tempered and foulmouthed, even for characters associated with User:Zev. Highstrung and irritable, it takes very little to set Hiyori off like a powder keg. In the off times she's not some degree of angered, Hiyori has displayed a cutting pattern of sarcastic, condescending diatribe and gleefully inciting others to fights with her.