It is a taboo story about love and incest between twins. It's not about sex, it's about the feelings the two have for one another and how society views them.
An acclaimed painter travels to Japan for an exhibition where he takes advantage of his free time to enjoy a Japanese bath or onsen. However, there is more to it than that. He is told that the owner of the bath has a false work of his. He meets a look-alike at the bath and the situation lends itself to what comes next
37 year old sales manager Iwatsu is so caught up in work, he's unable to truly live his life. One night while looking at his graduation album on his phone, he receives a sudden call from a girl named Kana. He's taken to his hometown Kobe, where he lived as a teenager. Slowly, by way of Kana, Iwatsu's past is resuscitated.
