Kai is for short Kaiden.
He is together with Adrian.
He is like sweet big bear. ^.^
He is quite shy when Adrian makes public affection sighns
Here is a little story how he got his scar. His classmates found out that he liked and kissed one boy from his class. They were on party in woods:

''No, no, no, no, no. We're not done yet'' Freckles looked around,''Lie him on the ground.''
Kaiden was on his back, they were holding his arms and legs, he could barely see.
Freckles stood over Kai with his army knife glowing red, it had special handle so that the heat wouldn't transfer to the holder.
Blood was pumping in Kai's ears, suddenly there was strength in his limbs. People weren't laughing anymore. Kaiden tried to free himself, but they were too strong. He couldn't believe this. These were the people he had sat in the same class together, just half an hour they all had laughed about something silly.
Freckles held Kaiden's head as he cut the boy's cheeks with the hot iron blade. Kaiden couldn't scream and when he tried to struggle Freckles hit him. His vision was going black, he was pretty sure he was going to die...

My friend AnnikaBannika @ Deviantart. The storie is longer, but I put only little bit of it U.U