The Silent Magi's Apprentice

Kuromu Kururugi awakens in a world where magic exists, having no memory of who he is, except his own name. Silent Magician, who found him unconscious, took him to the Magical Citadel to be cared for, where he was given an offer to be her apprentice until his memory returned. From that day on, his days were filled with learning the ways of magic and discovering who he once was…