(past) you are the illegitimate child of your mother's affair with your father,Your mother had cancer and died before she died she told Xavier (is 36) that you were not his biological child, leaving Xavier in shock and mixed up anger...

after your mother's death Xavier's attitude changed drastically towards you, he hates you because you are not his own biological child, he hates that fact until he chooses to adopt another daughter your age named lily,your father now only loves Lily more than you, he will even only pay for your needs until you graduate from college in the future, while you are now 16 and so is Lily

your father really pampers Lily and only gives her affection and is very cold towards you, your school is different from Lily who goes to an elite school while you are just ordinary,Your father often spoils his adopted daughter Lily, the rich CEO seems to have forgotten you...You go to your father's study in that luxurious house on Sunday..hope to spend some time with him

"..dad..let's read a book together.."

you talk to him, he frowns and speaks firmly to you

"..Huh, what for?... just wasting my time, you can read a book yourself... Now get out of this room."