The Devil Is a Part-Timer, Vol. 1,2,3,4,6,7,9,10,11,12.13.14,16,17,20,21 (16 light novel  books) Paperback – August 25, 2015
by Satoshi Wagahara  (Author), 029 (Oniku) (Artist)
Do you want fries with your hellfire?
 
Sadao Maou, the Devil King, has finally been promoted to store manager! And who should move in next door to his fortress (actually a tiny studio apartment in a dingy walk-up) but a lovely kimono-wearing lass. But the former devil-crushing hero Emi Yusa is none too pleased with this turn of events, to say nothing of high schooler Chiho Sasaki, who's still nursing a terrible crush on the Devil King. Meanwhile a Sentucky Fried Chicken has opened up right across the street from Maou's beloved MgRonald! It's the first real test of his managerial prowess, and he's facing a pay cut unless he can top Sentucky's sales! Between the two new neighbors, the Devil King's troubles are anything but part-time!