http://www.mangago.zone/read-manga/toki_doki/
This is a one shot and it made me CRY.
Also Kimetsu no Yaiba (Demon slayer) and Shingeki no Kyojin (Attack on Titan) are both popular and brutal (yes I cried in both)
Thanks, this made me so empty. Unfortunately I read this recently.
aw :/ how bout http://www.mangago.zone/read-manga/reimei_no_arcana/ ?
-Watashitachi no Shiawase na Jikan
-Good night punpun
-Not simple
As for BL:
- Acid town
-Sakura Gari
-Spin out( Kunieda Saika)
-Endless world
Do you have any completed stories with lots of angst or a really sad end. I'm fine with any genre, betrayal is good too. Just something that will make me feel empty for a year, it's also alright is there only one or two angsty scenes, but they're really sad. (Preferably as many as possible in the list). Don't mind any length. If there's good recs and they're not completed, I don't mind too much though.