Namanaka.

1. Sunset Melon Chimaki, the school idol, and Okano have been stimulating each other in the classroom after school every day. This has been happening for two months now, ever since Okano caught Chimaki masturbating on her crush's desk. However, they have not crossed the line, yet Chimaki has further things she is not willing to do, like kissing, which is making Okano grumpy. Chimaki, her feelings mixed, realises things can't go on like this, and so she decides to confess to her crush. Instead however, she sees a scene she did not expect. 2-8. Remember Me! -When I Remember those Days- Nao is a normal student, but just as he is about to enjoy his summer break using his favourite idol's photo collection, a ghost appears, claiming that Nao is a reincarnation of her lover who died 300 years ago. He can't remember any memories not his own, but Oryou knows a method: Nao is to have sex with many girls until the memories come back. And she is willing to help him using her supernatural powers. 9. Young Master's House After Shuuichirou's butler leaves, Kitahara, his maid, is the only other person living with him in the mansion. Unfortunately, she is a bit clumsy and oblivious, so she does not notice young master's burning gazes. Therefore, when his lust erupts, she is caught off guard, at first unable to respong to his feeling with her own. 10. I-It's Not Like I Like You, Or... Shiho, a maid, and Kazuki, her master, always end up bickering. Such as this morning, when Shiho went to wake Kazuki up, but ended up hitting him when she saw his boner. This causes Kazuki to seek solace in the gentle Mari, an another maid. Lately, he has been doing pervy stuff with her a lot, making Shiho feel left out, especially since she too has desires. So, today, after he insulted her chest, she decides to stay behind the doors and watch. 11. Rino Iro Rino is intelligent, attractive, and capable. She is very experienced with relationships, but recently she has been enamoured with a guy, her tutee Wataru. He is cute and pure, and he isn't just a crush: ever since he asked her about masturbation one month ago, they have been 'masturbating' together. 12. Secret Party Time has passed, and Nao and Akane are still in a happy relationship. Moreover, Akane has gotten pregnant. This is a very happy occasion, but it also means Nao has to part with his many sex friends, and to do that, there is no better way than with lots of sex.