This one have a really angsty ending. You'll know when you read both story and comments.
https://www.mangago.zone/read-manga/usotsuki_wa_shinshi_no_hajimari/
(I've actually stumbled upon a topic saying that it didn't really ended like that, there was just some issue or something)
Nothing hurts more than black lotus...
Ten years that I loved you the most
10 years where I loved you the most
Banana fish
Black Lotus
They scared my soul
Yall got any stories that hurt like a bitch? I want pain, sad endings, and delicious angst pst pst pst