Ousama Game The Animation  

Ou-sama Game, King's Game, 王様ゲーム The Animation, 国王游戏

Moving to a new school can be challenging, especially if you're not interested in making friends like Nobuaki Kanazawa. However, things take an unexpected turn when the class receives a text from someone known as "The King." The message contains instructions for the "Kings Game," which all students must participate in. Those who refuse to play or quit halfway will face a deadly punishment within 24 hours. Nobuaki has played this game before and witnessed others' deaths, so he tries to warn his classmates. Unfortunately, they only take him seriously after the Kings Game claims its first victim. Faced with an impossible situation and no way out, Nobuaki must decide whether to prioritize his own survival or try to save his classmates.