#Kiri's hair is black meaning he was a black dragon and Tetsu is a blond dragon but when they shed he turns gray like rocks so he can blend-

[heronoegg]

ok, so in this AU Kirishima is a dragon and dragon's in this world are like supposed to be extinct because the humans drove them away when something called "the tragedy" happened, some of the dragons died but some of them assumed human forms to stay alive and Kirishima's mom she wanted to live so instead of risking it to take care of her children she waited until Tatami became old enough to take care of them and left to live a quiet "normal human" life. the Kiri and Tetsu always had a hard time keeping their dragon parts in and that's the main reason she left them. Didn't wanna risk all of them dying but this is selfish on her part.

Tatami resents her mom for this (mommy issues tm) but Kiri and Tetsu were too young for it to bother them all that much