Once you get passed the whole "my girl is dead so I have to bang her sisters until one gets pregnant" aspect of this hentai, it's actually pretty pretty decent. I believe this anime would be best reviewed by character as each character basically has their own story. Naoto is, for whatever reason, one of the best anime guys I've come across in a while. I don't know if it's his looks, dazed expressions or dominant personality in bed, but he's definitely very amiable. Of course he has his negatives like being unable to control his urges and "teaching" a young girl sex-ed, but whatboy in this kind of anime doesn't have faults like that. Naoto's love for his late fiancee, Suzune as well as her sister, Ayumi, is extremely evident through the entire series. Despite being so promiscuous, he has a very innocent personality.

Ayumi is by far my favorite character of the series. She is the perfect girl. She's pretty, friendly, sweet, and a has very motherly qualities. I found myself feeling very bad for her whenever Naoto would call her by her sister's name because she really just wanted his full and undivided attention while they were making love. However, I do think the execution of the supernatural aspect could've been done better. I was really confused while watching on what was happening between Ayumi and Suzune's spirit.

The other two sisters, Shino and Yuiko are just fillers for the most part. Yuiko is married and it makes absolutely no sense why she would be the first to attempt to make a baby with Naoto when there's 3 other sisters. I found her scenes to be completely unnecessary. Shino, which is certainty the prettiest sister, has a slightly more relevant but equally as unnecessary role as Yuiko. She only has sex with Naoto one time by seduction while she was drunk and the scene seemed to only be thrown in there to show he banged all 4 sisters.

My least favorite character, Mizuna, probably shouldn't of even been involved in this whole baby business. She can't be any older than 13 and doesn't even know what sex is until Naoto "teaches" her and then she becomes obsessed with masturbation and sex toys. Her scenes were really uncomfortable, especially when she violently masturbates in the library for whatever reason. I found myself just skipping all the library scenes as they just looked pointless and awkward.

Not the best hentai out there, but certainly worth recommending. This hentai has a pretty decent attempt at a plotline and a happy ending. Although I would recommend just skipping the Mizuna scenes if you aren't into young girls to avoid feeling extremely uncomfortable. This version also is definitely better than Shin Ringestu by far.