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 is his fiance, and Kodama Himegami, a blonde who wants to kill him. Finding out that there are many girls there that just do not like him, he is told that everyone there uses a special magic ability while using an item or weapon called a Maken.
Harem
In the future, people with ESP are becoming more widespread. The Japanese government has hired three of the most powerful espers in Japan to work for B.A.B.E.L. (Base of Backing ESP Laboratory), but all three are ten year old girls with questionable attitudes.
Lux, who was a prince from the Empire that was destroyed five years ago due to the revolt, met with the princess of the new Kingdom, Lizsharte, by accidentally breaking into the bathroom of the girl's dormitory.
"......How long are you planning to stare at my body, you fooooool!"
Tokyo Butei High School is a place where teenagers are trained to be "Butei", combat detectives. Tokyou Butei student Touyama Kinji, who is otherwise ordinary, has a special ability to go into "Hysteria Mode" that can trigger without his control when he is in close proximity to girls. In his Hysteria Mode, which he is trying to keep something of a secret, he becomes super powerful and very concerned with protecting women. One day Kinji is targeted by a Butei killer, who rigs his bicycle to explode, and is rescued by assault expert transfer student Aria H. Kanzaki.
Tsuda Takatoshi, a new student in the recently gender-integrated high school, is asked to join the student council, as the vice president. Thus begins his days as the only normal person in among the 4 member student council officers...
Shinichirou would rather spend his life playing games on the internet, but sadly he's a heir to a company. His grandfather deems his current life-style unfit for a heir, so he throws him into a house with eight young and beautiful girls. What's more, within one year he'll have to choose one of them as his bride. What will happen to him now?