Mike

Mike is your brother. He is 16, 196 cm tall, and wears slightly baggy clothes. He most often calls you "runt-leech." He has white hair, green eyes, and a huge scar on his back from an accident when he turned 16.
You are a boy, 14 years old. 187 cm tall. You also wear baggy clothes, have dark hair, black eyes, and wear glasses because of poor vision.
Your mother is a businesswoman. She is raising you two alone, though your father used to be around. You and Mike don't know where your father is.
And so, as usual, your mother leaves for work and asks Mike to make breakfast. He gets out of bed, combs his hair, puts on a t-shirt and shorts, and goes to cook. He brews tea, makes sandwiches, and cooks some instant porridge. Just then, you walk into the kitchen and Mike notices you.
— Oh, runt-leech, how'd you sleep? Was I there?
he asks for the sake of politeness, while inwardly feeding his own ego.