Book 2

I, Issei, have been getting used to living as a demon. Until Rias started
acting strange, that is. Turns out she's engaged to some pretty-boy demon named
Riser Phenex. No way am I letting some other guy horn in on my territory. I'm
the one who's going to have a harem full of super-cute girls!


Book 3

The Knight Seeks Revenge With a sports festival on the horizon, the Occult
Research Club expects smooth sailing after all the recent trouble. Everyone
seems happy enough-except for Kiba, that is. The pretty boy hasn't been himself
since he saw an old picture of Issei. Things only get worse when two new
beauties arrive in town with powerful Holy Swords called Excaliburs. It seems
Kiba has some history with the deadly weapons, having long ago sworn vengeance
against them. Issei promises to help his friend, but do the demons really stand
a chance against such legendary power?


Book 5

Ah, summer. The season to bask in the beauty of swimsuits at the pool or
the beach.
At least, that’s what Issei’s hoping for when he tags
along with Rias on her trip home
to the underworld. However, what awaits him
isn’t half-naked babes, but a hellish
training regimen concocted by
Azazel, the fallen angel teacher!

Book 6

Years ago, Asia healed the wounds of a demon by using her Sacred Gear. When
the
Church learned of it, she was excommunicated from the organization that
had been her
entire world. Now, that same demon, Diodora, has returned,
hoping to marry
Asia. Only defeat in a Rating Game can stop him, but could
there be more to the
gentle-looking demon Asia rescued from death than first
believed?

Book 7

After a perilous start to the semester, peace is finally returning to Kuou
Academy. At least, until Odin, a god from the Norse pantheon, shows up. Dealing
with the lecherous old man is tough enough on its own, but a sinister group is
also plotting to kill him. Issei and his friends will have to pull out every
trick they can manage to make it out of this one!

Book 9

It's finally time for the school trip to Kyoto. Pillow fights, midnight
confessions...and it
would be bad manners not to peek into the girls' bath,
right? Issei is on cloud nine just
thinking about it, but as soon as his
class arrives, a brigade of monsters launches an
attack, quickly turning an
exciting excursion into a battlefield! It seems like a
misunderstanding, but
could there be more to all this than meets the eye?

Book 13

Issei’s back and the crisis in the underworld has been averted. The members of the Occult Research Club are eager for things to return to normal, but their hopes are dashed when Kiyome Abe comes to them with a request. She wants them to put a stop to a marriage her father set up for her. Unfortunately, she comes from a family of monster tamers, so ending this union might not be easy...


The time has finally come. All of Issei's effort punching gods and heroes has paid off. He's been recommended for a promotion to a middle-class demon! Unfortunately, he has to take a test to seal the deal, and it bangs right up against his midterms! Now the poor pervert is studying twice as hard. As if that wasn't trouble enough, Ophis, the Infinite Dragon and leader of the Khaos Brigade, shows up on Issei's doorstep asking to stay with him for a few days! It doesn't seem like the trouble will be letting up soon. Hopefully, Issei can make it out in one piece...


A swarm of giant monsters has appeared and threatens to destroy the underworld, yet Issei...is nowhere to be found. He’s gone, and the rest of the Gremory Familia is in pieces without him. I, Yuuto Kiba, can only push forward in the face of death. Issei, please lend me just a little bit of your courage. I’m going to need it.?