Yari Tono (20) goes out to dinner with Waka Soyo (probably a high school student), a baby-faced senior who works at the cafe where she works part-time, on the advice of the manager.
There she discovers that Waka is actually a grown man, four years older than her.
Tono is puzzled by this shocking revelation, but...what if the senior guy at his part-time job is not actually a high school student?
Their relationship begins to take off...