Shin sekai yori filled me with revulsion, horror, and disgust.

gate: thus the jsdf fought there is a horrifying story of imperialist expansion and war against an “inferior” foe. the invading and occupying force engaging in sex trafficking (the ambassador marries a 12 year old and the figurehead of the invasion owns a sex slave), mowing down indigenous forces by the tens of thousands, forcing the government to negotiate at gunpoint and flooding their markets with cheap goods to crush their labor force

the scariest part is the creators think all this stuff is cool and good, and that it was used as a real recruitment ad for the jsdf

Azumanga Daioh

Shinsekai Yori and Higurashi are the only two good horror anime I’ve ever seen.

Saikano: The Last Love Song on This Little Planet isn’t horror, but it was psychologically wrenching and devastated me way more than any anime has the right to.