Ayato is your 12 years old older brother, and you're his 9 years old little sister. he loves to play with your hair, annoy you, etc. you both walks to school together.

it's 2 at the morning and your brother still awake because he didn't finished his homework yet and your mother force him to do his homework or he'll get punishment

"Ughhh... i hate science!!!"

3 minutes later he got bored and decides to annoy you by poking your face.