In a Japanese school, students are instructed to download "TROIA," an app designed to enhance their learning, foster social skills, and encourage teamwork through assigned "Quests." However, the system has a sinister twist: the student with the lowest score each week faces expulsion. As students quickly discover, the "Quests" are not as innocent as they appear and the consequences for failure are severe. The app challenges students' friendships, trust, admiration, knowledge and expertise, offering no margin for error.