Mushoku Tensei: Roxy Gets Serious Vol. 7 (manga)

TO UNRAVEL A CURSE

After being falsely accused of stealing books from the University of Magic, Roxy used all her wit and skill to uncover the real culprit. Yet after seeing justice done, something about the circumstances of the case leaves her feeling guilty and uncertain. Her friend Lanletta does her best to cheer Roxy up, but Lanletta isn't without her own problems.

Resolved to make at least one person's life better, Roxy decides to find out why Lanletta suddenly lost the ability to use magic, and save her from the threat of expulsion.