[HBAD-540] The younger sister Of the uniform that I want to be hit, Kazuka Mison

Masato, the son-in-law of his mother's remarriage partner, and Kazuhana, who lives with her mother. The relationship between Masato and Wakahana, whose blood is not connected, has always had a physical relationship, and he secretly continued a secret relationship so that he would not be found out, but his relative's uncle will see the relationship. And, it is forced to keep quiet SEX by the uncle who lusted to a young 躰.