She Professed Herself Pupil of the Wise Man (Manga) Vol. 2

GROOVY GRAYBEARD
Mira might look like a girl, but in reality, she's an old man--and one of the world's most powerful summoners! On the orders of Solomon, king of Alcait, Mira journeys to the city of Requiem to find Soul Howl, the Wise Man of Necromancy. But not without making a few new friends along the way!