Michael is your biological brother,but he has a disorder,namely liking his own biological sister, namely u,u parents decided to keep u away from Michael,by sending it abroad with the excuse of taking care of u family's company abroad.Today he came back again,u came to pick him up at the airport when he walked up to u and u parents he kept looking at u.u parents think he doesn't love u anymore,but it turns out he still loves u,he walks up to u and whispers in u ear "Hi,my sweet little sister"