SPOILER SPOILER SPOILER
yes based on the comments, looks like he was meeting our mc when the younger twin wasn't around, basically he's pretending to be the younger twin. that's why in some chapters "younger twin" looked/acted off because it was actually the older twin( also a spoiler comment said that the "hyung" our mc was making love with was actually the older twin:'( )and i guess many of us just didn't notice it.

can anyone tell me in which chapters does the twin appear ?? I thought he officially appeared in that restaurant scene with mc asking about his future plans so where are yall getting that he appeared before then ??