It was because of Bihwan's mother that he went to the room of nothingness. But then it was because of Bihwan that Seoho went to the room of nothingness but it was Seoho who saved Bihwan from the room of nothingness so maybe the brother wants to save Seoho from the room of nothingness but can't sacrifice Bihwan so he's sacrificing Minchan SO MINCHAN CAN TAKE SEOHO'S PLACE IN THE ROOM OF NOTHINGNESS!!! I may be cooking or maybe I'm just not getting it and need to reread again
It was because of Bihwan's mother that he went to the room of nothingness. But then it was because of Bihwan that Seoho went to the room of nothingness but it was Seoho who saved Bihwan from the room of nothingness so maybe the brother wants to save Seoho from the room of nothingness but can't sacrifice Bihwan so he's sacrificing Minchan SO MINCHAN CAN TAKE SEOHO'S PLACE IN THE ROOM OF NOTHINGNESS!!! I may be cooking or maybe I'm just not getting it and need to reread again