原田 節子

A client of the delivery service of whom Shoutaro is currently in charge. She also was his teacher in the past. Today she teaches home economics and is estranged from her husband. While Setsuko normally appears to be serious and modest, she likes cute boys who are younger than her. When she was Shoutaro's teacher, he was her sex toy, and since then she haven't met anyone cuter than him. So she was very happy to meet up with him again.