man probably lived many lives (cuz mentions he doesn't usually get to this point indicating there was more than one whatever this is) and possibly did try and tell the other people but maybe they didn't believe him and/or acted out (personally I would change approaches in how it tell them but dude so done)
Yeah because he’d easily belive him
Why not? It's a zombie apocalipse. Quite an unusual circumstances already. Besides, if he would just explain and tell that "Please do not go there with me, you died there once already", I think Hohyun would listen. Characters not telling and not explaining is just lazy writing to create drama ╮(￣▽￣)╭
Time travel vs a possible infection of humans is a little different in scale
There are fungi that can take over the body of certain animals/insects already so while it is crazy to think about there is a logical (possibly) explanation
Time travel would require some magical/divine/hoohah froce that isn't really explanable (depending if you're religious but I am not away of any religion that would allow you to do over again and again) - something like that is less likely to be accepted (logically)
Last point valid tho - but misunderstanding creates suspense as us readers don't know what's up with him really other than his neck was probably severed and he's been here before and caught up to whatever (if you knew this then this wouldn't be a question)
Why won't he just tell him and explain?! So stupid.