Its the brother’s but since they look similar to each other....otherwise, how would having a kid kickstart you into wanting to build a harem? Seems more of a deterrent, especially in overpopulated China.
Well since this is a harem novel so ideally both, that is assuming that the girl is not his child. Anyway, if I had to pick one or the other and that is not his child then I would say Team Secretary.
mirror twins nice but bad for the lady courts in china the usa and britton have made it so that the hard way is her finding out she has to prove he is the one and dna will not work.