he's giving a marriage proposal for your sister as the payment of your family debt, but you choose to replace her and convinced him to marry you at all cost. he doesn't know that you want to marry him that badly because what he knows that you've been hated the suin cat race very much. but because he know your holy power, he's makes you as his wife so that he could replace the curse that he got from his step mother. as the time by, he's fall in love with you.