6 years passed away in very erotic hentai anime Boku no Yayoi san part 2 when naughty guy Hiro lost his older brother and started a relationship with widow of brother Yayoi. The young guy is very happy to have such experienced woman like his sister-in-law. But the situation is not so comfortable for Yayoi because she can not tell anybody about that. One not happy day Hebizuka Jouji suddenly visited her who was blame for the accident of her husband. He told her that he knows about her and her small brother and if she wants still keep it in a secret, she must make a love with him. Yayoi did not any other choice except to agree and safe a silence in Hiro’s life.