Did he undo the curse? is he crying?? As long as this ends well I can handle the angst

if he did then it's probably because he's planning to sacrifice himself (nooo) ╥﹏╥

Isn’t it more like he chooses to separate both seoho soul and Michal soul , so he probably mourned ( crying)because he definitely chooses michan over seeing again seoho. So I don’t think he sacrifices himself

Minchan has already passed away in an accident when he was young, and his soul had long been gone and replaced by Seoho's soul. The curse we're talking about is the one placed by Binhwa.

I said he might be "planning" to sacrifice himself because the soul replacement inadvertently disrupted the natural order of things. This might lead to Binhwa feeling like the only way to resolve the situation and give the souls' peace is through self-sacrifice (ofc, no one's dying here but his future decision might put himself in danger in hopes of freeing Minchan). I hope you get what I mean.

I don’t think that theory about Michan death is true , didn’t the brother said he has to replace fragments by fragments the soul of michan by the soul of seoho, plus biwan after discussing with him has a dilem about letting Sappho completely come back and leaving michan disappear… so I personally don’t think that part about michan death is correct

Yes, correct, they are fragmented. However, it is already implied that the more balls he ate after killing demons, the more his original pieces gets replaced with Seoho. So yes, technically its still there but he's also been eating demon balls for so long. And this raises conflict for Bihwan as well. Why? Because he needs to choose. After all, Bihwan's whole thing in the beginning is getting seoho back.

when was it implied that consuming the demon orbs replaced minchan's soul with seohos soul

Minchan isn’t dead? The brother saved him from death and is slowly giving him Sephora soul I thought? Ima have to read the chapter again but I don’t think minchan ever died

Ahh sorry I'm probably mixing things up with another novel then. Because as far as I remember, Minchan is nothing more than a vessel now... even if there's remaining soul of Minchan inside, it might as well be fragmented.