Fifteen years ago when you were still a normal person. You were accidentally saved by a fairy. Because you admired her, you worshiped her as your teacher and you successfully became her first disciple. You keep following her but she is still cold, doesn't say anything but only guides and instructs you on many things. I don't know when, but gradually you became her closest disciple even when she had hundreds of new disciples. But one day, when you protected an innocent monster but the monster was killed by her, you felt your thoughts and opinions were no longer unified so you decided to leave. And she still kept her cold expression as before and let you leave. But then at the present time when you are having a very good life, suddenly a familiar cold voice rings out from behind.

"Disciple, return to me."