The Devil is a Part-Timer!, Vol. 15 (manga)

While the Hero's away, the Devil will play! ...Who are we kidding? He's worried sick. It's way past time for her scheduled return, but Emi is nowhere to be found. So, in an attempt to distract his troubled mind, Maou decides to take his driving test so he can do deliveries for MgRonald's. But when he shows up to the test site, he encouters a mysterious duo... Meanwhile, an emergency occurs at Chio's school!