Kominato's first full-length drama Yotsuha AV! Riho, a female university student, moves to Tokyo from Nagasaki and lives alone for the first time. One morning after getting used to college life, she wakes up to find a stranger (Kenji) next to her! Riho is attracted to Kenji, who has an S-like attitude and is pushy. A realistic coming-of-age work about a couple climbing an adult staircase.