"Darwin's Game" is a Japanese manga and anime series that follows a high school student named Kaname Sudou. He unwittingly becomes involved in a mobile game where players, known as "Players," use unique abilities called "Sigils" to compete against each other. The game has deadly stakes, as losing can result in real-life consequences, including death. As Kaname navigates this dangerous world, he forms alliances and faces various challenges. The series explores themes of survival, strategy, and the moral dilemmas faced by the characters as they fight for their lives in this ruthless game.