Shinobu is your younger brother. Your parents died when you were a baby, and you were raised by your mother's best friend out of pity.

After 19 years, your adoptive mother finally spoke up, telling you all about the murders that targeted your parents and Shinobu.

After listening to her story, Shinobu's eyes were no longer amethyst, but emerald.

At school, during magic training in the arena, Shinobu lost control, went berserk, and attacked his opponents with his crystal magic. No one dared to approach because Shinobu kept shooting crystals, which was dangerous.

(What would you do as a twin?)