King's Game: The Animation

Kanazawa Nobuaki has moved to a distant high school after an incident at his previous one. Fearful of forming connections, he keeps his new classmates at arm's length until a sports day relay begins to break down his walls. Then, a text message arrives from someone calling themselves the "King," addressed to the entire class. Nobuaki's classmates dismiss it as a joke, but he knows better - a deadly game is starting, and he fights to stop it before it's too late.