I think the sister and the dark haired guy are in on it together? To be honest I think the sister might be selling out her little brother lmao. Like she needed something from the guy so she is giving him what he wants which is her little brother coming to live with them. So they made a deal and now the little brother is back. Dark haired guy most likely knew the mc long time ago, he seems to be confident in charming his way into the mc’s heart. I don’t really get a feeling that the sister is that fond of her “fiancee”, they might be just pretending to be like that so it’ll be a good excuse for the guy to live with the siblings. Mc probably won’t find out at first and keep it in his guilty little heart lololol
I think the sister and the dark haired guy are in on it together? To be honest I think the sister might be selling out her little brother lmao. Like she needed something from the guy so she is giving him what he wants which is her little brother coming to live with them. So they made a deal and now the little brother is back. Dark haired guy most likely knew the mc long time ago, he seems to be confident in charming his way into the mc’s heart. I don’t really get a feeling that the sister is that fond of her “fiancee”, they might be just pretending to be like that so it’ll be a good excuse for the guy to live with the siblings. Mc probably won’t find out at first and keep it in his guilty little heart lololol