https://www.mangago.zone/read-manga/perle/ lets suffer
SO SWEET IT MADE ME CRY:
https://www.mangago.zone/read-manga/on_the_way_to_meet_mom/
I think about this a lot:
https://www.mangago.zone/read-manga/your_eternal_lies/
https://www.mangago.zone/read-manga/baraou_no_souretsu/ heres to breaking hearts and rewiring brains
Omniscient Reader's Viewpoint:
https://www.mangago.zone/read-manga/omniscient_reader_s_viewpoint/
I would highly recommend the novel. I was hyperfixated on it for months, to the point it hindered with my personal life. This story changed me as a person, and it made me start writing fanfiction. It has been years since I completed it, yet it still haunts me.
10 Years I loved You The Most:
https://www.mangago.zone/read-manga/10_years_where_i_loved_you_the_most/
I genuinely regretted picking it up since it worsened my seasonal depression. But, I still come visit it every winter as one would visit a graveyard.

I need stories that changed your life
stories that made you cry and regert reading them
stories you think about and know you'll never be over
stories so good the alter your reality