At Nogi Girls’ High School, Satoko quickly mastered the school’s rules, the habits of its staff, and its administrative operations, even correcting errors in teachers’ handouts. Though she didn’t join any clubs, she was an unsung hero in administrative tasks, considered by staff as “more useful than a teaching assistant.”

In her private life, Satoko had a 27-year-old boyfriend who worked at an IT company, introduced through a relative at a family gathering. She often complained about him: “He’s older than me but acts like an emotional child.” Still, she dutifully checked on his meals and reminded him about insurance and taxes—her uniquely “Satoko” way of showing affection.