Anime : School Days

This.....This anime.... It's not for underage kids. I don't know what kind of genre this anime is. Well, it has romantic, HENTAI (perv stuff) and some killing action. If you think you want to watch or download this anime, please STOP. Don't. You'll regret it later just like I did. But if you want to.. well.. go on. This anime have 12 episodes and 2 OVA ..

These are some of their characters:

Itou Makoto

Saionji Sekai

Katsura Kotonoha

Katou Otome

Kiyoura Setsuna

Synopsis: This story revolves around a boy named Itou Makoto. Makoto is a gentle, kind-hearted and has an abnormally large sex drive. He has a crush on a girl named Katsura Kotonoha. With the help of Saionji Sekai, the girl who sits next to Makoto in the class, he managed to go out with Kotonoha. They officially are dating. However, Sekai also loves Makoto and she even kissed him. Makoto started to avoid Kotonoha since she won't let him touch her chest or do anything more than that. Sekai gives Makoto "special practice/training" so that he will understand Kotonoha's feelings. When they keep doing the "special training" Makoto seems to like Sekai. So.. Makoto is cheated on Kotonoha with Sekai. Then, there is another girl named Katou Otome, who was in the same class with Kotonoha, loves Makoto too. She even have sex with Makoto during the school festival and still doing it after that. Makoto later started to have sex with another girl in the same school such as Kiyoura Setsuna (Sekai's bestfriend) and Otome's friends.When Kotonoha(Makoto official girlfriend) finds out that Makoto is cheating on her, she started to lose her sanity. Then Sekai told Makoto that she was pregnant. Makoto refuse to be responsible. So.. How this anime would ended? What will Makoto do? 

P/S : This anime has the craziest ending. Well, that's my opinion. Watch it if you want to know.