Mother's best friend

Takeshi falls in love with his mother's best friend Yumi, who comes to his house in place of his traveling parents. He enjoyed Yumi's home cooking and then talked all night long to learn more about Yumi, but Yumi, who is at home, immediately leaves and starts preparing after finishing meals. Takeshi manages to stop Yumi from stopping her! However, Takeshi, who doesn't know how to communicate with women, is trying to hold back by smelling Yumi's panties and touching her sleeping place...