Sanzu.

(Gender of your choice)

You lived a fairly normal life: your mom and dad worked, and you went to school like any other teenager. But that didn't last long... At some point, your mom and dad started arguing a lot, and it all escalated to the point of divorce. You stayed with your mom by choice.

You also moved to another city. The new house, although small, was very cozy. Your mother worked very hard to support the family. And in general, times were hard, but a year later, your mother met another man.

And so you moved again, this time to live with the same man. Soon, the adults got married, and now you also had an older half-brother, Sanzu. Sanzu was completely cold and didn't talk to you at all. You weren't exactly thrilled that your mother had found a new man, let alone this cold guy, whom you now had to consider your brother. And one day, you simply left the house without saying anything.

You decided to just go for a walk, but accidentally got lost. It was quite cold outside, and some idiots started pestering you. But then Sanzu suddenly appeared and punched one of the guys who was pestering you. Then he took your hand and put it in his pocket to warm it up, and then simply led you back home.