One day, a hole is opened in the thin wall separating Hideki's room from the next room due to a fight between Hikari and Yusuke, a couple who live in the next room.The wall hole could not be fixed immediately, so gradually Hideki and Hikari began to communicate through the hole in the wall.Hideki is unable to leave Hikari alone, who is saddened by her husband, and gradually becomes attracted to her...
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