Ahahaha, this little demon seed? He came from an AU where both Fubuki Shirou AND Fubuki Atsuya survived the avalanche that would've killed Atsuya in canon.

Basically, he's a snarky little jackass, but he loves his twin~ <3 He's also very tsundere~ He doesn't exactly have the best temperment in the world, but that can be forgiven, right?