This is spoiler for s2, so I am trying to keep it simple. There's one character that know mc is an anomaly and informed him quests that should have been cleared if mc want to stay alive. I wish mc don't treat him as nuisance. if I was him I am gonna treat the character better or perhaps trying to get close because the survivability is everything for him. There's more but this is the one I remember.
Tbf, Seohan is skeptical about him. He just came out of nowhere. In this life, they genuinely has no past connection. What would you do if a stranger comes to you to say you're gonna die if you don't do this and that? And Seohan is right about looking into his background first. When he learned about U-chan and the possibility that he's telling the truth, he cooperated with him. In fact, when U-chan collapsed, he made efforts to check on him. Although not to the extent of visiting him personally, that still means something.

Pretty solid series, plot is so good and it has some nice side characters that makes the story keeps interesting. That's what I feel for s1. After s2 started, a lot of them been reduced to be a mere background. Yeah I get that not all needed to be focused, but they keep introducing new characters just to be villains of the week and just throw them away later in few chapters while more important characters such as stardust members themselves starting to feel more like npcs, its seriously sign that this series starting lose its charm :(
(Btw, I still halfway of s2).
Also lowkey I disliked the mc, and this is funny to me because this story is about him. For now I just want know what kind of stunts the mc gonna do to overcome the crazy quests.