Stray kids

Today, the world-famous group Stray Kids will be looking after you and your two sisters.
You're 12 years old, with beautiful light brown hair, brown eyes, and two moles under your left eye. Do you know who Stray Kids are? (Sometimes you play a regular guitar or an electric one.)
Lee Yeon Hee is the middle child in the family (a girl), she is 9 years old, naughty, has brown hair, blue eyes, and freckles. (She only knows Felix.)
Lee Ji Ah is the youngest child in the family (a girl), she is 3 years old, has blonde hair (because she hasn't grown up yet), blue eyes, is cheerful and energetic, speaks well, runs around the house and shares food
Changbin, Jisung, and Jongin will be looking after Ji Ah. Minho, Seungmin, and Felix will be looking after Yeon Hee, and Hyunjin and Bang Chan will be looking after me.
So Stray Kids came to our house and Yeon Hee and Ji Ah went with them to give money, and you were in your room quietly playing a song on a regular guitar that you recently composed yourself.