Behind the prosperous human civilization, the dark genus that was supposed to be quietly buried in history — the "beast". But the "warfare" brought by someone changed their destiny. There was no way for humankind to do it in front of Terion, who regained his original power and instinct and became a hunter again. Takuya Shinomiya is an ordinary high school student who attends a private Todo school with Reina who grew up like a brother and sister. However, from the time he was fascinated by the transfer student, Kuji Hinako, his daily life collapsed. The shadow of the terion jumping into the city, Hinako who is chasing the terion. And when Takuya and Reina regain their lost childhood memories, the wheel of fortune begins to turn!

That night, Fujima Yamato got involve in serial murder and almost got killed but she was saved by a transfer student, Shinonome Shizuma with a magic. Yamato had been awake at her house. Yamato offers her some assistance for Shizuma who came here to stop a serial murder that was done by a beast, but he gets rejected by her. However, he doesn't give up. Even though he got rejected and follows her but...

Mankind was on the verge of extinction due to the runaway and war of the atmospheric control plant. Amagi Ren, a boy of "Magician" who manipulates even the laws of physics by rewriting the "information" of existence, is an experiment to be transported to Kobe City, one of the only seven closed cities "City" left in the world. He receives a request to take a sample, but is also blocked by the magician "Knight" Yuichi Kurosawa and brings back only a girl named Fia. Ren and Yuichi collide with each other for the people who want to protect them. However, Fia had a serious secret about "City" ...