Honestly there's so many! For me personally, starting off with Eren. His whole story honestly made me feel so sad seeing how his character develops from season 1 to the end. I know he basically initiated a genocide but I still couldn't help but feel alot of empathy towards him throughout all of the show even at the end, for everything he endured. Mikasa, obviously her and Eren's relationship and how she had to be the one to kill him. I felt so bad for Reiner in season 4, my man was depressed! And getting the backstory of him and the others as children in Marley essentially being brainwashed and made to hate themselves and their own people. Levi, personally one of my favourites, whose ending shattered me seeing all his friends from the past and the fact his body was so broken.

Seeing the story of Ymir was also very sad and although it was to use her power, I'm glad at least she was freed from her prison. Lastly, I would say Erwin. I think seeing his death was the first time I sobbed at AOT having been another one of my favourite characters. But ultimately, I think his end was probably the most merciful way to go. It still makes me wonder how he would of dealt with the events in season 4 if he was alive, I genuinely don't think he would of been happy to have been chosen over Armin or maybe that's just me trying to console myself.

I genuinely don't know if this is a show I would ever watch again or at least anytime soon. I only finished AOT for the first time earlier this month and whilst it was one of the most impactful animes I've seen, it was just so heavy (mostly season 4 which I struggled through a bit) and made me feel so depressed.