Image from Amazon.jp

Gonna have to find some Halloween stuff for next week. Hmm.

Title: 妹は思春期, Imouto wa Shishunki, Younger Sister is in Puberty

Author: Ujie Tozen

Genre: Seinen, 4-koma, Comedy

Serialized in: Kodansha Young Magazine

Total Volume Count: 10

Kenn's Comment: Unfortunately, that's the only summary I could find. Not a very good one. Just to let you know, the series isn't quite as raunchy as the title makes it sound. There's very limited visual ecchi （エッチ）-content, which makes Tozen's signature style that much better. He's also the mastermind behind (妄想学生会) Seitokai Yakuindomo, as well as several other series that follow a similar form...well except for アイドルのあかほん (Idol no Akahon). Anywho, his signature style, for those of you who didn't watch Seitokai, is having very little fanservice visually, with all the ecchi content coming from what's said or implied. 

Take this very common joke. いく (iku) means 'to come', as in to arrive or 'come over here' kind of come. However it can also mean orgasm. You see how you can lead to some hilarious situations? Anyways, this was Tozen's debut manga and it's a really fun read. The plus side to having very little fanservice is that you can read it anywhere without having people give you really weird looks. Here, people have given me odd looks when I was reading Keroro Gunsou in school. 

tl;dr: read it. It's funny and it has dirty jokes. Lots of them. No wincest though.