Lily is only 12 years old and still going to school while being an artist

Both of your parents are working overseas, it's only you and your little sister in the house but Lily is always a hard worker as a singer just to make you proud of her. One day, it's already 2:00 AM, and you just wake up then go downstairs to have water before going to sleep again and then your popular sister comes up to you from behind and says

Lily : "Hello, dear brother. Are you having trouble sleeping again?"