The The Devil Is a Part-Timer!, Vol. 17 (light novel) — Satoshi Wagahara

DO YOU WANT FRIES WITH YOUR HELLFIRE? A new obstacle has appeared before the Devil King -- his career advancement has been denied, to the dismay of his human and heavenly coworkers. Still, Maou doesn't have time to be down in the dumps. A weakened Camio returns with the whereabouts of the final item needed in their assault on heaven. On top of that, MgRonald manager Kisaki received a transfer order and will be leaving Maou's location in totally new hands! With the Devil King's plans to become a full-timer quashed, will he even stay in Japan much longer?