Students are taken hostage by their homeroom teacher. They are asked to answer the question as to why a student committed suicide a few months ago. 8:00 p.m. is their time limit. If they get the answer wrong, one of them will be killed.
Up Next in Season 1
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S1E2: Mr. Hiiragi's Homeroom
After the first night, Hiiragi poses a second question to the students. It concerns a fake video that someone posted on social media just before Reina took her own life.
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S1E3: Mr. Hiiragi's Homeroom
After negotiating with Gunji, Hiiragi decides to speak directly with Igarashi. In the meantime, Hiiragi's new assignment is to find out who recorded the fake video.
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S1E4: Mr. Hiiragi's Homeroom
One after another, students are killed. The person who shot the video is now identified, but Kai claims that he gave orders to shoot it. Hiiragi, however, insists that there must be a mastermind behind Kai's actions.
