most depressing anime you have watched?

most depressing anime you have watched?

Uff i dont know really, but just now i can mention elfen lied and claymore

Anohana the flower we saw that day. One of my first sad anime and i cried all the time watching this. The OP / EDs still make me cry to this day

I don't really watch much anime that can be described as depressing, not really my vibe. That being said, I will never rewatch Fate/Zero. That shit left me in a funk for weeks.

dont remember much but probably angel beats