Was the trio they met from the A Dead Crow's Stare webtoon? A collab I'm guessing?

I have actually been curious about that. I first thought that it was a spoiler for a new webtoon but yours makes more sense though i haven't read a dead crow's stare

I'm not really sure either since that webtoon is based in a zombie apocalypse, but the characters look similar and the name matched too I think