The most angsty yet satisfying bl you can think of:

Swallow you hole

this one hasn’t been adapted yet into an actual manwha despite its neat as hell premise, but holy fuck that same premise is actually lowkey messed up

https://www.novelupdates.com/series/is-love-a-luxury-in-a-zombie-game/

plot tldr: mc awakens in a zombie infected video game world he was playing where the goal of the actual game is for the mc aka the now player character to get to his ex’s place but.. there’s a catch

everytime the mc in the game dies he regenerates and the difficulty gets notoriously harder (since the game is mentioned to be famously insanely hard with all its endings)

edit: here’s the actual link if you wanna read it

https://cherrymist.cafe/chapter/illzg-prologue/?corder=asc