Maken-ki!

Maken-ki! (マケン姫っ!?) is a Japanese manga series by Hiromitsu Takeda (武田弘光, Takeda Hiromitsu). It is currently serialized in Dragon Age Pure, published by Fujimi Shobo. The official website of Fujimi Shobo's Monthly Dragon Age magazine has revealed that an anime adaptation of Hiromitsu Takeda's Maken-ki! manga is in the works.

Story
Takeru Ohyama, a young normal yet perverted minded guy, got accepted and now goes to a school that, unknown to him, was where combat and magic is used. On the first day, he meets again after three years: Haruko Amaya, his childhood friend, Inaho Kushiya, a girl who says she's his fiance, and Kodama Himegami, a blonde who wants to kill him. Finding out that there are many girls there that just don't like him, he is told that everyone there uses a special magic ability while using an item or weapon called a Maken. Later, he finds that no Maken is acceptable for him and doesn't know what to do, since in this school the students get into duels that showcase their magic and combat power, to which he seemingly has none.