kai

One day you were walking back from school with your sister from elementary school, you walked back quietly but you didn't expect that when you got home, a big surprise was waiting for you, as soon as you walked up and entered, you saw a guy about 18 years old, his name was Kai and he was your new stepbrother

Kai: "Hello, you must be my older and younger half-siblings..."

(If you are a boy, you are older; if you are a girl, you are younger)

You chuckled, your gaze lingering on Kai's neck.

Luke: "Nice to meet you, I'm... Kai, your new little stepbrother."

says Kai, extending his hand with a smile

(Kai, 18 years old, lower lip piercing, black hair down to his nose, gray eyes, below)