Graduation Time Limit(2022)

Graduation Time Limit is a Japanese mystery series following four high school seniors who receive an anonymous challenge: solve their popular English teacher's kidnapping within 72 hours, or face unknown consequences. The students—Kurokawa Yoshiki, his childhood friend Takahata Ayane, athlete Ogita Junpei, and beauty contest winner Komatsu Mio—must uncover why they were chosen for this task. As the clock ticks toward their graduation ceremony, the group discovers disturbing secrets about their teacher's hidden past. The investigation forces them to confront uncomfortable truths about the people they thought they knew, blending teen drama with suspenseful mystery as personal relationships fracture under pressure.