Responses

YEAA thats possible,, i asked cuz i thought i may have missed a detail or two while reading. but i do think that its related to their past (where he and chaejun have met) but the author havent shown much yet about their past so maybe thats why we know so little about him and his brother's relationship !
actually whats the issue with his brother? why is he on his ass so desperately and like he keeps running away from his beother too