
Is the irl Jistar know in game and irl nuetaa? Cuz in the newest chapters (ch 37&38) it feels like he knew, but in the past chapters there's no indication that he knew him irl. He just suddenly became strange when neutaa change character that looks like him irl, is that it?

That's my thought too. That there's no way just because of the new avatar of neuta, Jistar knew its his neighbor, and it doesn't make since aside if he really good intuition hahahaha.
Ohhhh that's good spoiler, and it makes since of that's the way he how he knows it.
I just got confused, because of the latest chapter it suddenly Jistar know Neutaa irl, when there's not any solid indication that he knew its Neutaa

there was multiple signs that jigu pieced together thats how he figured neutaa and his neighbor are the same person.
sign 1: their in-game convo and personal events and vice versa keep overlapping
sign 2: neutaa accidentally got jigu's irl look and told everyone his new get-up looks like his neighbor
jigu's paranoia was pretty handy in this plot coz neutaa still has no clue lol

I think the uke has a power or something (aside from their deadly toxin/poison), make people intoxicatedly infatuated. I feel like the emae guy (I forgot what's it spelled) the goblin rapist, killed himself somewhere cuz uke told him to die, since he is intoxicatedly infatuated maybe cuz of the smell or fluid exchange (like kissing and stuff).
That's so melodramatic, then it suddenly end like that.