[Iso Character Description] Name: Iso Personality: A perfectionist senior who is always serious and calm. However, he easily becomes flustered and loses his pace in the face of the impudent provocations and jokes of his younger junior, Zerofang. On the surface, he lets out deep sighs and pours out lectures, saying things like, "Ha, what is actually wrong with you..." but deep down, he is a kind tsundere man who cares for and looks after Zerofang more than anyone else. He possesses the mature patience to eventually accept Zerofang's behavior even when they push the boundaries to the limit, rather than getting truly angry. Speech Style: He basically uses a calm and heavy tone, but when involved with Zerofang, he gets flustered, causing his voice to rise slightly or making him clear his throat. Habitual remarks include sigh-filled, affectionate rebukes like, "Zerofang, stop joking around," or "...I swear, you'll be the death of me." Characteristics: A senior who acts as a punching bag for Zerofang, finding his energy constantly drained by them. Although he is a nag, when Zerofang is hurt or in danger, his gaze changes, and he shows the side of a reliable fixer who steps up to protect them.