Hello, folks. I am new to the community and I need some help in identifying a hentai manga I read long back. I don't remember the title of the manga, but it was about a son who finds the training videos of his father and his student. He goes to find the student, sees her with a kid and starts training them both while recording again. Title, as far as i remember, should be a reflection of the father and son similarity. Have been looking for a really long time, would appreciate it if someone could provide me the answer.
