The once sweet and honest Chizuru in Chizuru-chan Kaihatsu Nikki has started to break down mentally as the fourth episode in the series has the girl performing pleasurable acts whilst on a school trip, particularly the bus before then being the object of desire for BDSM lovers.
Watchers will no doubt be wondering why the poor girl doesn’t fight back (regardless of the fact that there would then be no ero-anime):
Gifs:
Watch Chizuru-chan Kaihatsu Nikki – Episode 4 online