Manwha transmigration to a game

Not really horror but a game

Horror game

Horror game, kinda angst

Last boss that's helping the hero

BL and their stuck in a game where a killer is out to get them

Survival (she will die if she makes a wrong choice) type with some angst

Could be horror since if she fails the task she might die and the male leads are psychotic?

The story are more complete here
https://magustoon.org/series/if-they-get-obsessed-i-m-doomed

I'm just gonna drop this cutie over here