Isn’t this kinda hinting that Huimin really either have a split personality or that he’s not from outside the novel world or something but he’s just getting back his memories of his past? Originally both of them met a tragic end and Huimin said he’d protect him this time around, so now in the present time Iheon got memories of his past and he’s trying to change the ending but Huimin’s memories haven’t come back yet or he doesn’t realize the novel memories are in fact his past life and that it’s not a different person. I think it could be that it’s not a split personality but as the doctor said along the line that it’s both him but it didn’t have an opportunity to see the light or something? That if Iheon didn’t ”ruin” Huimin’s life and was as kind as now Huimin would have been cheerful and have the personality we witness now
Isn’t this kinda hinting that Huimin really either have a split personality or that he’s not from outside the novel world or something but he’s just getting back his memories of his past? Originally both of them met a tragic end and Huimin said he’d protect him this time around, so now in the present time Iheon got memories of his past and he’s trying to change the ending but Huimin’s memories haven’t come back yet or he doesn’t realize the novel memories are in fact his past life and that it’s not a different person. I think it could be that it’s not a split personality but as the doctor said along the line that it’s both him but it didn’t have an opportunity to see the light or something? That if Iheon didn’t ”ruin” Huimin’s life and was as kind as now Huimin would have been cheerful and have the personality we witness now