I'm a Succubus in the Wizarding World

Kailan, who wanted to become a magician, got a god-level magic necklace. The necklace can release powerful charm magic. From then on, he was sought after wherever he went, and countless people tried to teach him magic. "I want to learn space magic." "Here are ten space magic secret books. I give them to you because you are kind." "I want to learn fire magic." "I caught a red dragon for you to use as a pet. You learn from it." "I want to learn ice magic." "I am the Ice Elf Queen. I betroth my daughter to you. You can learn from her."