The Legend of the Seven Holy Stones

Tandoji Arima (voiced by Takua Atsushi Terajima) is a sophomore in high school. He seems taciturn, serious and introverted, but he actually has a past that he cannot bear to look back on. In order to avoid hurting the people around him, Arima chose to live alone. One day, a girl named Aiba Ruri (voiced by Ai Nakajima) appeared in front of Arima with the butler Kasei (voiced by Irino Jiyuki), and proposed to use the power of the "evil stone" in Arima's body. Although the power of the evil stone is powerful, it is difficult to control, and Arima once made mistakes that he regretted. Lanyu Liuli possesses the power of the "good stone", which can contain and suppress Arima's rampage. Under Lanyu Liuli's constant pleading, Arima finally decides to step out of the shadow of the past and open up his heart. What the two of them have to face together is the monster transformed by the power of the evil stone.