Book 1

An elite, but socially-stunted gamer finds himself in another world, inhabiting the body of his character Diablo! But despite his powers, his awkwardness keeps getting in the way - so he decides to pretend to be a Demon Lord and soon finds himself with a pair of slaves: a well-endowed elf and a cat girl. Together, they struggle with everything from interpersonal relationships to diabolical beast battles!

Book 2

An elite but socially-stunted gamer finds himself in another world, inhabiting the body of his character Diablo! But despite his powers, his awkwardness keeps getting in the way - so he decides to pretend to be a Demon Lord and soon finds himself with a pair of slaves: a well-endowed elf and a cat girl. Together, they struggle with everything from interpersonal relationships to diabolical beast battles!

Book 3

An elite but socially-stunted gamer finds himself in another world, inhabiting the body of his character Diablo! But despite his powers, his awkwardness keeps getting in the way - so he decides to pretend to be a Demon Lord and soon finds himself with a pair of slaves: a well-endowed elf and a cat girl. Together, they struggle with everything from interpersonal relationships to diabolical beast battles!

Book 5

An elite but socially-stunted gamer finds himself in another world, inhabiting the body of his character Diablo! But despite his powers, his awkwardness keeps getting in the way - so he decides to pretend to be a Demon Lord and soon finds himself with a pair of slaves: a well-endowed elf and a cat girl. Together, they struggle with everything from interpersonal relationships to diabolical beast battles!

Book 6

An elite but socially-stunted gamer finds himself in another world, inhabiting the body of his character Diablo! But despite his powers, his awkwardness keeps getting in the way - so he decides to pretend to be a Demon Lord and soon finds himself with a pair of slaves: a well-endowed elf and a cat girl. Together, they struggle with everything from interpersonal relationships to diabolical beast battles!

Book 7

THE DEMON WITHIN Rem has been freed from the demon inside her, and Krebskulm—now called Klem—has entered the world in the form of an adorable little girl with an insatiable appetite for biscuits. But a Demon Lord still lurks within her, ready to awaken at any moment! What will happen if Klem is pushed to the breaking point? Are Diablo and his friends strong enough to stop her from destroying Faltra?

Book 8

An elite but socially-stunted gamer finds himself in another world, inhabiting the body of his character Diablo! But despite his powers, his awkwardness keeps getting in the way - so he decides to pretend to be a Demon Lord and soon finds himself with a pair of slaves: a well-endowed elf and a cat girl. Together, they struggle with everything from interpersonal relationships to diabolical beast battles!

Book 9

An elite but socially-stunted gamer finds himself in another world, inhabiting the body of his character Diablo! But despite his powers, his awkwardness keeps getting in the way - so he decides to pretend to be a Demon Lord and soon finds himself with a pair of slaves: a well-endowed elf and a cat girl. Together, they struggle with everything from interpersonal relationships to diabolical beast battles!

Book 10

An elite but socially-stunted gamer finds himself in another world, inhabiting the body of his character Diablo! But despite his powers, his awkwardness keeps getting in the way - so he decides to pretend to be a Demon Lord and soon finds himself with a pair of slaves: a well-endowed elf and a cat girl. Together, they struggle with everything from interpersonal relationships to diabolical beast battles!

Book 11

X MARKS THE ROT In Zircon Tower, Diablo and his companions have hit rock bottom. Batutta–the Paladin captain behind the frontier city’s deadly outbreak of Marked Death Disease–has captured Rem and Lumachina, and plans to use them for his nefarious scheme. But when Diablo ventures underground to save them, Batutta deals a debilitating blow to his left arm. Severely wounded, and unable to use his most powerful magic, has Diablo finally met his match?

Book 12

SWEPT AWAY

In order to cure the Marked Death Disease, Diablo must raid his own dungeon to retrieve a healing talisman from his treasure trove. But when lowly adventurer Horn is carried off by a raging underground river, Diablo must leap in after to save him! Meanwhile, Rem, Shera, and Lumachina continue on as planned, only to encounter a Black Dragon!
 

Book 13

STRUGGLE FOR THE STRONGHOLD

The invasion of Zircon Tower heats up! Faced with the Fallen’s overwhelming military might, the defenders of the city, led by Laminitus, seem to be cornered…until Diablo, his crew, and his powerful lightning magic appear! Decked out in new gear from his dungeon, the Demon Lord is ready for his comeback!

Book 14

CHAOS IN THE CATHEDRAL

With Zircon Tower safe, Diablo and his crew turn their attention to the corrupt Cardinal Council. But danger lurks beyond the church walls, as Diablo realizes once again that not even powerful magic and enchanted gear can level up his ability to talk to girls.

Book 15

Takuma was just another awkward gamer, but a twist of fate sees him summoned to another world - in the body of a demon lord! And no one’s more terrified of the prospect than Takuma himself. He may have power, but he’s in way over his head. So he decides to pretend to be the monster he looks like, and accidentally winds up with a pair of gorgeous slaves: a voluptuous elf and cat girl. It’s not what any of them wanted, but they’ll have to figure out how to work together if they want to survive!

Book 16

Diablo and his companions arrive at a Dark Elf village, searching for a magic ritual that can extract the soul of the Demon Lord sealed inside of Rem. They succeed in gaining an audience with the village's top-heavy chief, Rafflesia, but there's a problem. Shera is elven royalty, and a deep grudge persists between the elves and dark elves. If Diablo's party is to win Rafflesia's favour, they'll have to fulfill some very tough conditions!

Book 17

Diablo and company rush to the Greenwood Kingdom, where Shera's father, the king of the elves, has recently passed away. Once they arrive, Shera swiftly becomes the centre of attention. Whoever marries her will end up as the next ruler of the kingdom! Unfortunately, Shera's mother has already decided on her preferred fiancé, and he's a frightening ogre of an elf. Just what fate is waiting for the princess of the elves... and is Diablo going to stand for it?!

Book 18

A DANCE OF DEMONS

Diablo and his companions have saved the Kingdom of Greenwood from the Demon Lord Kardia, long sealed beneath the elven wood. But at the very moment they claim victory, two more overwhelmingly powerful demons appear! To prepare for war with humanity, these demons plan to sacrifice Kardia to their master, the Overlord Modinaram, so as to bring him to a truly terrifying height of power. Diablo is the only thing standing against them...and is it possible he might wind up being appointed king of the elves, despite being a demon himself?

Book 19

With the Demon Overlord Modinaram threatening all humanity, Diablo decides it's time to raise his level as a fighter, ASAP. After a quick trip to Faltra City to gather information, he sets out for the northern mountains of the Demon Lord's Domain. His plan is to find the swordmaster Graham, study under him, and learn his peerless swordsmanship. Instead, he winds up discovering a cute dwarf girl named Sasara took over the mantle of Swordmaster just half a year earlier! It seems like becoming her disciple won't be easy, either...

Book 20

Determined to raise his fighter class levels, Diablo overcomes the difficult trials set by the (supposed) Swordmaster Sasara. He becomes her disciple in no time, and is all set to undergo the final–but most grueling–challenge. Yet before the ultimate trial can even begin, the Demon Overlord Modinaram begins the invasion of Faltra, and our beleaguered party is attacked by...an Evil Ape?

Book 21

AT MY SIGNAL, UNLEASH HELL!

The war of the Fallen against the mortal Races begins. Eulerex, the Supreme Commander of the Demon Lord Forces heads one side, while the other is led by Governor Galford of Faltra. The Races put up a gallant opposition, but a Demon Overlord Cannon greatly reduces their numbers and the walls of the city begin to crumble. Klem and Edelgard come running to the rescue, but with the appearance of Demon Overlord Modinaram and the Fallen girl Ryoka, will they be able to turn the tide of battle?