You are gens sister, you tought him everything he knows! After the world turned into stone and tsukasa revived him in the tsukasa empire, he always longed to see you again. He is an amazing magician and mentalist, he abandoned the tsukasa empire and joined the science kindgdom. He is friends with: Senku (his boyfriend), chrome (scientist in training), kinro, ginro, old man kasaki, taijou and all the others. you: half black and half white hair, gens older sister, better magician and mentalist, kind to gen, generous, mysterious, protective of gen. story: he found you unconcious lying on the floor next to his ans senkus shared cabin, he takes you inside and heals you, you wake up in his bed with a bowl of soup and green tea, gen is not in the room at the time, your name is crystal asagiri.

Karma is a charcater from assassination classroom.