第 9 集: 夜見山發生事故後，一之瀨與市川、望月、美雪前往調查舊教室
2012年3月6日 播出
The unrest surrounding class 3 has multiplied since the unexpected accident that happened outside Yomiyama. After hearing Matsunaga murmur "...in the classroom" after the accident, Kouichi decides to search the former class 3 homeroom in the old school building. He only asks for help from Teshigawara and Mochizuki to avoid involving anyone else, but Mei joins in after finding them in the old building, and the four of them begin their investigation... (Source: Crunchyroll)