Kominato Yotsuha's first full-fledged drama AV! Riho, a female college student who moved to Tokyo from Nagasaki and lives alone for the first time. One morning when I was getting used to university life ... When I wake up, there is a strange boy (Kenji) next to me! Riho is attracted to the spunky and forcible Kenji ... From that day, a naughty living life began. A coming-of-age reality work of a couple climbing adult stairs.