How NOT to Summon a Demon Lord

レム・ガレウ

Rem Galleu is one of the female protagonists of the series. She is a Pantherian who became an invoker and had no choice but to become an adventurer and continue to demonstrate its strength, saying to aim to exterminate the Demon King Krebskrem. It is later revealed that the soul of Krebskulm is sealed in her body and in case she dies the soul will be released.

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ディアヴロ

Takuma Sakamoto (坂本 拓真) a.k.a. Diablo (ディアブロ) (gamer tag: @Diablo-13) is the male protagonist of the series. He was a Cross Reverie player who controlled the character Diablo, known as the true Demon King. He always defeated players with better equipment and overwhelming skills, always holding back for being too strong. But one day he was invoked in another world, reincarnating in the body of his character, Diablo, finding two girls, a Pantherian and an elf, who claimed to have invoked him and that he should be a slave to one of them but due to his ring the magic back against them becoming slaves.

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シェラ・L・グリーンウッド

エデルガルト

Edelgard is a supporting character in the series. She is a Fallen (Demonic Being). She is shown riding a dragon-like creature, but as she enters into combat she descends from him and fights with her spear due to her demonic beast being paralyzed out of fear. She commanded the army that attacked the city of Faltra and was the superior of Gregore, but was defeated with the rest of the demonic beings by the supreme magic of Diablo, leaving her barely alive.

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クレブスクルム

《Demon Lord of the Soul, Krebskulm》is one of the rulers of the Fallen (Demonic Beings) and distant relative of Main Protaganist Diablo.

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メディオス

Medios is an attractive pale-skinned woman with hip-length dark red hair that is tied up in a ponytail with chest-length bangs covering the right side of her face while the tips of her hair are styled in curls, light-purple eyes and she has a very voluptuous body that can seduce any man. This is seen when Diablo stared at her body and blushed.

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メイ

She exhibits an energetic happy-go-lucky persona when interacting with guests but can give out a threatening persona to put unruly people in their place. As long as she's facing a paying customer, she doesn't care about race or origin, whether Human, Pantheran, Demon or even Fallen, it does not matter to her. She further doesn't care what customers do in their rooms so long as they don't bother their neighbors, or cause property damage. When Diablo openly declares his intent to "torture" Rem, and Rem objects, rather than be concerned about the torture, she's concerned that Rem's being too loud.

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He is a good-looking young man with a tall, thin, and slender body. His hair is dazzlingly blonde and it extended down to his waist.

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He embodies everything one would expect of an ideal knight. His courage and dedication are what motivates Diablo to come to the defense of Fort Ulug during the 100 Fallen assault. He was willing to face an advancing army of 100 Fallen, despite knowing he didn't stand a chance so that the farmers and other civilians could evacuate into the city. Fortunately, Diablo provided interference and drove off the Fallen.

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サドラー

He was a man with a sharp impression similar to that of a bladed tool. He wears a deep scarlet plate mail on his body. And had several swords in his possession. There were two swords on each of his left and right sides of his waist, and two more on his back, for a total of six long swords. Also, there was a fixed dagger on his belt.

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