When Wakana saw him for the first time, he was captivated. From what others had heard, Tsubame was rumored to be a Mistress. He was supposed to be someone "not normal," someone from a different world. The more talked to him, the more uneasy Wakana felt at his smiling and troubled expressions. But the glimpse of their "lover" relationship that Tsubame had given Wakana's heart was filled with jealousy...!?