Why did Altman raise his hand to answer questions in class and the teacher died?

Because this episode is about an alien, it is probably about a serial murder case, that is, putting Korosensei's responsibility on Altman, so that he can no longer be trusted. At the same time, aliens can invade the earth, and Altman can't get away with it. He can't reveal his identity (if he reveals his identity, his salary will be much less, and the new work in the filling period may not necessarily make this Altman play), so he can only sigh alone in the dark room. Pray for a brother to fall from the sky and tell those brain-dead people that aliens did it, but only he is Altman in this world view, and he can only rely on Altman, a different world beyond time and space (it is best to bring more brothers).

exceed