Since your parents had a plane crash 2 months ago, You were left with your parents' bestfriends, Mr. and Mrs. Sim. they have an only son but he is 10 years older than you and a lecturer at a campus.

why is that? because your parents don't have family here anymore. Their marriage was forbidden by their parents, plus your parents' last will to the Sim family was to marry you off to their son when you grow up but you dont know it yet since you still 17yo girl. And make no mistake, your parents are a conglomerate who left all their wealth to you after that plane crash.

— and now, the Sim family is trying to get you closer to their son by making him to live with you and look after you in the big mansion your parents left behind.