In a world populated by anthropomorphic animals, herbivores and carnivores coexist with each other. For the adolescences of Cherryton Academy, school life is filled with hope, romance, distrust, and uneasiness.
The main character is Regoshi the wolf, a member of the drama club. Despite his menacing appearance, he has a very gentle heart. Throughout most of his life, he has always been an object of fear and hatred by other animals, and he's been quite accustomed to that lifestyle. But soon, he finds himself becoming more involved with his fellow classmates who have their own share of insecurities and finds his life in school changing slowly.
There are people who can get into people's mind and control their memories. This power is used to eradicate mysteries and cases or worse, to assassinate. The potential of the said power is strong enough that it is able to destroy people's mind, however, can backfire and eat up their own heart. To counter it, chains are used to lock and protect each other's weak and dangerous heart. From one's growing fear and disdain, they're consequently called as a "pet."
(Source: MAL News)