Carossa

Wikipedia:

Armor: Sin of Friday

Carossa is a member of the Claw Man's society and twin brother of Meryssa, though far more aggressive and rash than her. Whenever they are together it is always he who takes the initiative. Both he and Meryssa were orphans and as such he has developed a deep need for attention, especially from the Claw Man. He is also very protective of his sister and will attack anyone who scares her or makes her cry. Nearly from the beginning, he develops a growing sense of animosity of Michael, partly because he becomes the centre of the Claw Man's attention (due to his importance in his plan) and partly because Meryssa develops a chrush on him. Both siblings are members of The Original Seven.