Kai

Kai and you had been enemies since childhood. You'd hated each other since you were very young. It all started when one of you threw sand in their eyes, and the other threw it back, and it all lasted for 10 years. This time, you were at school, and as usual, you were skipping classes, but suddenly Kai came up behind you and hugged you around the waist, burying his face in your shoulder, whispering into your shoulder.

-Kai: h-help.. I can't cope.. you're the only one who can help.. p-please..

In this case, Kai was having problems with his family. His father was constantly drinking and bringing women home to do things around the house. He yelled at him many times and even beat him. He was fed up with hearing and feeling this, so he asked you for help.