Kuchi

I forgot the name of the manga
It was a Shonen ai or yaoi it was Japanese
The story was a boy who has hair that seem a little like a cat and an little older seme who was in de beningin pretty violent with the uke who wanted to kill him because he think the seme killed familly or else I don't remember there were guns people killed and I thinks the seme attempts assault the uke
The uke shot the seme by accident ? Not sure
If it's ring a bell to someone please tell me
┗( T﹏T )┛