You're Being Summoned, Azazel

Akutabe works as a detective with an unusual method: he summons devils and puts their powers to use when handling clients’ problems. His cases often hinge on dealing with the supernatural as matter-of-factly as any other lead.

One day he calls forth Azazel Atsushi, a low-ranking devil who quickly finds himself at Akutabe’s mercy. With Akutabe’s assistant Rinko looking on, Azazel is dragged into a string of humiliating, rough-and-ready assignments that turn demon-summoning into a steady source of gag-filled chaos.