I was originally a magister, my name is An. Originally, he died as a sacrifice to save his comrades in place of 'him', but he did not die. Came to a strange world.
"Why?" I asked
"Because of your ability, child. I will give you the family affection that you did not have in the last life, and I will give you your magic power, but you have to help me, help Conan, that is, Shinichi, to destroy the dark organization and rescue 'Yu Yan'. Since magic power is an unreasonable existence, you have very little magic power. Use physical strength instead when necessary. That's it, you, let's go."
White light appeared, and I was born, named 'Black Yu Qi' as the youngest son of Kuro Yu Daoyi.