Mr. Kubodera takes a knife out of his bag and drives it into his throat, killing himself right in front of his class. He was a bachelor who had murdered his bedridden mother. The class stops ignoring both Kouichi and Mei, and start to investigate how to stop the killing. Yuuya’s sister Tomoka, a pub waitress, meets someone in the same class as Kouichi’s aunt, and supposedly he was the one whose actions stopped the killing in August of that year. Kouichi dreams about and fears that he may be the ghost student, but both Izumi and later Mei allay those fears.
This episode starts off with the bloodiest mess thus far, with the homeroom teacher making no attempt whatsoever to tear out his throat in a neat and timely fashion. The whole class is stunned, shocked, and traumatized, with few exceptions. Sakikabara takes it pretty well, as do Teshigawara, Yuuya, and Izumi. Mei barely flinches. Not surprisingly, with such a clear display of failure, the nonexistence embargo is lifted on both Kouichi and Mei…and neither seem to be the grudge-holding type, so all’s back to normal…except for the deaths, of course.
We’re now fully in the detective story realm, with witnesses to interview, clues to discover, and things to deduce. Kouichi has some nice interaction with Izumi – who thankfully is just joking when she tells him maybe he was never born – and just when you thought he and Mei hadn’t goten any alone time, they have one final sweet scene where she gives him her cell number, even though “being connected to people all the time by electromagnetic waves disturbs her”, and invites him into her life-size coffin-like doll box…which is a little more…creepy-sweet.