High-schooler Shiina Shinya thinks that all girls are pretty much good-for-nothing, mostly because he doesn't understand them at all. That doesn't stop him from being surrounded by strange girls.
Tsubasa Tooka, a cute, much-admired girl, stalks him. Shikimura Masami is majorly into masochism, and has recruited Shinya into her play sessions. Ikari Satsuki seems suspiciously interested in the recent serial stabbings, and seems to want to drag Shinya into it. Banjou Yoruko, a normally quiet, bookish girl, has decided she and Shinya are bound up in some fantasy setting. Uchida Yumeji is the school's sleeping beauty, who spends all of her time in the infirmary because she requires so much sleep. Shinya brings her newspapers, so she can keep up with current events in the short time she spends awake. Lastly, Okui Akane is convinced she is a vampire. For all Shinya knows, it could be true, but in practice it just means that he has to let her drink his blood.
How will Shinya deal with all these good-for-nothing girls that complicate his life?

Kamizono Academy is a school with an elementary, middle, and high school all within the same campus, and Ayumi is a new student at this enormous school. She is shy and has difficulty making friends, but when she meets wild and outgoing Torako, school life gets interesting as Torako begins to befriend various students within their class.

It appears that the series stops at 6 volumes in 2011. Then the first 6 volumes were reprinted in 2012 with a 7th volume that came out in 2013.

Yuu is famous for having an extreme brother complex. In reality, she has emotions for her little brother, Hiro, which have far exceeded a normal sisterly love. A little complicated family love comedy from the author of "Hyakko." This is a story of forbidden love with an older sister, a younger brother and their half sibling Tomo as well.