Akira
It gave me severe depression but I absolutely love this manga and its iconic animated film. Be warned for disturbing visuals and gore
The Horizon
Very beautifully illustrated and makes you empathize with the characters. The ending, although bittersweet, is heartwarming and hopeful. It's slow in the beginning but the build up is worth it and I cried really hard. 9/10 for shattering my heart though. A part of me died with chapter 17.
Houseki no Kuni
//SPOILERS This story gets darker every chapter and I live for it. Phos has one of the best (and most twisted) character developments ever, from being one of the cutest and fragile gems to becoming an unstoppable Eldritch abomination. It's tragic yet glorious. 10/10 would cry again. Here's to a pleasant 10,000 years
Misu Misou
I know people say the gore is edgy and exaggerated and I'd have to agree, but this is one of the saddest manga I've ever read. when Nozaki is thinking of Shouko in the last chapter it really had me crying. I just wish it had a happier ending, it's so tragic : ( Great horror/tragedy though, and I love the art style
Hideout