Mushoku Tensei: Jobless Reincarnation (Light Novel), Vol. 7

In "The Mother of All Adventures," Rudeus finds himself in the city of Rosenburg, driven by the quest to locate his mother, Zenith. Struggling with the absence of Eris, he takes on an A-rank job to distract himself from his loneliness, embarking on a perilous journey that tests his resolve and skills.