Hilma Cygnaeus (ヒルマ・シュグネウス) is the leader of the drug trade department of the criminal organization, Eight Fingers. Hilma is described as a woman with sickly pale skin who wears white clothing. She has a snake tattoo that crawls down her right arm starting from her shoulder blades and holds a pipe that gives off poisonous, purple fumes. She also wears purple mascara and lipstick, and thin garments that gave her the decadent aura of a high-class prostitute. However, after being tortured by Kyouhukou, she was traumatized and would later lose the ability to eat solid food which caused her to become extremely thin, she now looks like an old lady rather than a "high-class prostitute". Hilma was actually proud of being a high-class prostitute and used those skills of hers to blackmail the nobles along with other people in power to the service of Eight Fingers. After Hilma was interrogated by Kyouhukou, she has reverted into a miserable woman who has become mentally broken and in constant despair from the punishments she has suffered, simply asking about her experiences causes her to feel sick. She would go so far as to betray her comrades in Eight Fingers and has become utterly subservient to Nazarick.

Overlord
When a popular fantasy MMORPG shuts down its servers, one guild leader, the skeleton mage, Momonga, finds himself transported to a real fantasy world trapped inside the body of his avatar. His guild’s fortress has been transported to an unfamiliar world and the inhabiting NPC characters gain sentience and look to Momonga as their supreme ruler–an overlord as it were. With his extensive knowledge of magic and powerful, fanatic minions following his every whim, Momonga continues to roleplay the part of the evil overlord to the extent that domination of this new world is not an entirely unappealing option.

Overlord II
Continuing his quest to rule this new world, Ains begins to put the pieces in place for his conquest. But between a Lizard Man tribe uprising, and performing missions as adamantite adventurer Momonga, Ains has his work cut out for him! Thankfully he has his most loyal and willing subordinates to do his bidding.

Overlord III
Following the horrific assault on the Re-Estize capital city, the Guardians of the Great Tomb of Nazarick return home to their master Ainz Ooal Gown. After months of laying the groundwork, they are finally ready to set their plans of world domination into action. As Ainz's war machine gathers strength, the rest of the world keeps moving. The remote Carne Village, which Ainz once saved from certain doom, continues to prosper despite the many threats on its doorstep. And in the northeastern Baharuth Empire, a certain Bloody Emperor sets his sights on the rising power of Nazarick. Blood is shed, heroes fall, and nations rise. Can anyone, or anything, challenge the supreme power of Ainz Ooal Gown?