Boy named Shiki moved out of his hometown and started living with his grandma. In school, due to unforeseeable circumstances he joins The Psychology Club led by strong-willed girl named Ren. From now on he gets to help other students by going into the core of their emotions-the crimson core and establish the balance they seek.
Will Shiki help himself by helping others or will the worries of other people spell damnation of his own?