Mushoku Tensei: Jobless Reincarnation Vol. 12 (manga)

IDOLS MADE OF MAGIC

Rudeus enrolled in the University of Magic to unravel the secrets of the calamitous Fittoa Displacement Incident, but his fellow students present problems of their own. The super strong, super strange Prince Zanova is absolutely terrible at spells, despite Rudeus's tutoring, and an unexpected hunt for a magic craftsman leads to a slave market. There, in the hopeless eyes of a dwarven child, Rudeus sees an echo of his old self. His resolve to save her from despair and give her a reason to live.