Ep. 9: Kouichi investigates the old classroom with Teshigawara, Mochizuki, and Mei following an accident near Yomiyama.

Following an unexpected accident outside Yomiyama, unrest regarding class 3 intensifies. After Matsunaga mutters "...in the classroom" post-incident, Kouichi resolves to search the former class 3 homeroom located in the old school building. To prevent further complications, he initially recruits only Teshigawara and Mochizuki for assistance. However, Mei discovers their presence in the old building and insists on joining the effort. Consequently, the group expands to four members as they commence their investigation into the matter. This collaborative search aims to uncover the truth behind the recent events and the murmurs that sparked the growing tension surrounding the class.

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