The story centers on , a typical, somewhat perverted teenager who enrolls in Tenbi Academy , a school that recently transitioned from an all-girls institution to co-ed. His dreams of a lively school life with girls are quickly turned upside down when he realizes it is actually a training academy for students who wield specialized magical weapons known as "Maken" .

A strange, enthusiastic girl who immediately claims to be Takeru's fiancée.

Students use these unique items/weapons to manifest special combat abilities.