Haruka Minami

As the eldest of three, this dependable high school sophomore has spent years nurturing her younger siblings, though her caretaking role often causes social friction at school. While she is known for her reliability, she secretly indulges in extreme laziness when alone. Despite a past reputation as a junior high "gang leader," she is actually quite gentle. She commands immense respect from Chiaki, who treats her with formal politeness and views her as an ultimate role model.