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Asuka and Rika are cousins. I used to play with them when I was little, but after the Asuka family moved to Tokyo, they became estranged. Rika, who graduated from university and decided to get a job in Tokyo, was forced to stay at Asuka's house until the room to live in was decided, and the two suddenly approached. Rika is actually a lesbian. Rika who has grown up is cute and can't help ...