Not a vampire, but this sounds like "Choose your Hero Carefully"
Dude downloads his friends game, gets sucked in and wakes up in a coffin. He then has to control a dead hero to keep himself alive. This sound familiar?
that's the one! thank you so much
if this happens to you in the future and you were logged in, you can see your history on what you read recently if you press the clock-like thing next to your pfp at the top right. it has saved me so many times
ooo that's very helpful, i forgot about that! thank you so much again
Looking for the webtoon(?) where a guy wakes up after downloading a game on his phone and discovers he's in a coffin. He thinks he may have been buried alive but it's implied he got isekaied into being a vampire or smth.
IDK anything else i fell asleep before i reached the second chapter man