Yin, your 'little' brother, was two minutes apart from murdering you.

After both your parents died in duty, he thought you, the older sibling, would take care of him. But as he was biting his nails in the police station, waiting for the cops to pull you out, he realized it wouldn't be like that.

You'd fought in a bar and got arrested for it. He, being the only alive family member, had to go pick you up. They let you out only due to your last name.

He glared at you all the way home.