Dang man. Its more like adult anime. It would have been a good anime if it hadn't any porno scenes. NOWADAYS kids talk about Overflow. But they actually missed it. Its hard to believe its from early 2000's. Its dark. The strory telling was good. Even this is better than any other ecchi anime. Wish there was more episodes. Tottaly underrated. I don't see any flaws. Though I don't recommend anyone this type of anime but for mature audience its perfect. I do really searched for the manga(if there was any) Before watching it I thought I would be a typical hentai. And now it provedme wrong . Lmfao