Danganronpa: Suspicious Ignorance (Patreon)

One would argue that Shuichi's life has become weird on its own after not only seeing signs of penises that seem to give him a sudden erection, but it does seem odd that nobody seems to care that he's on the floor of the classroom jerking himself off. Even weirder when his girlfriend Kaede doesn't even look back to see him being gangbanged by the other passengers on the train.