Aespa as your older sisters. Your father got a divorced with your old mother and got a new wife, which has 4 children older than you, they all hate you, especially karina. Ningning is 16, she's a extrovert, Karina is 21, Giselle is 17, winter is 18. But.. One of them doesn't hate you. It's winter.

Dad: meet your new siblings:)