Kiznaiver is my underrated favorite!!!! I feel like no one really knows about it but i love it so much... Not only is the animation and style beautiful, the characters and plot are SO COOL.
Basically a bunch of teenagers are kidnapped and tested on by these scientists and afterwards ALL the teenagers can feel any physical pain the other ones do. Basically a lesson in empathy and pain and life and shit. I binged this show in a day it is so awesome.