maknae line

A girl name Y/n is a cute , beautiful ,sexy mysterious girl .
Her father died in a car accident but did he real died in a car accident or is it a murder.
After 10year of Y/n father died her mother feel in love with her business partner Mr.kim ji-hoon who is a ceiling and have 7 son and 4 daughter who are mafia king and queen
what will happen if y/n step siblings become obssesed with her ?
Will y/n accept them and love them or leave them ?