Protagonist (Mass for the Dead)

Protagonist is a homunculus NPC created by the Supreme Beings and the player playing the Mass for the Dead game.

Appearance
No clear details are given on the protagonist's physical description and looks in the initial start of the game. It is only until later is the character portrayed as wearing a full suit of jet-black armor with a red mantle.

Personality
Despite being one of the least known NPCs in Nazarick, the protagonist is just as loyal to the Supreme Beings as any of the Floor Guardians and Area Guardians. Due to his the knowledge he acquired from the library, the protagonist is no doubt one of the most intelligent of the NPCs. After his existence was made known to the rest of the dungeon, several of the denizens of Nazarick would go to him for assistance in research.

Background
A homunculus that was created by one of the Supreme Beings and situated in Ashurbanipal. The protagonist has never been appointed a true position in the dungeon. Before the Great Tomb of Nazarick moved to another world, he busied himself in continuing to learn the wisdom of his predecessors by reading the collections of the great library to help the Supreme Beings someday.

Abilities and Powers
The protagonist's abilities and class are generally at level one due to his race. But thanks to his magical equipment gifted by Momonga, he can overcome his weaknesses, rising to the rank of a platinum ranked adventurer.

Main Equipment

 * Sealing Crystal: A magic crystal that contains transfer magic to allow for a quick escape.
 * Full Body Metal Armor: This pure suit of black plate armor is created for his Adventurer Persona.
 * Twin Great Swords: The two swords are for his Adventurer Persona primarily, wielding one in each hand for melee combat as a warrior for dual-wielding.
 * Frost Pain Modified: A ice-type elemental weapon.
 * Necroplasmic Mantle: The red cape his Adventurer Persona is seen wearing around his neck.

Momonga
Before the transfer to the New World, Momonga never knew of the protagonist's existence or that there was such a position of Deputy Assistant Diplomat in Nazarick. However after the protagonist was vouched for by one of his creator's other creations, Momonga began to trust him. As time went on, the Overlord came to rely on the homunculus to be his eyes and ears in the New World. Due to the success of the homunculus and his diplomatic skills, Momonga now has the utmost faith in the NPC's abilities.

Slimeko
The protagonist has a close relationship with the slime. He originally had treated her like a normal expendable summon. However, after realizing she had a personality of her own, he changed his attitude towards the slime and began treating her with more consideration. Ever since then, they have been paired up together for going on missions and are inseparable from each other. Even during their time off at Nazarick, the two would usually found themselves together again in the same library while re-organizing the books.

Neuronist Painkill
Neuronist Painkill was one of the NPCs that were killed during the transfer to the New World. Due to her death, her duties were temporarily given to Shalltear and Demiurge. After she was revived and tried to resume her duties, Neuronist found her information she gleamed from her torture victims to be outdated as the information was already acquired by the protagonist out in the field. She began to feel marginalized and became envious of the homunculus. However her envy was short-lived as after she met with the protagonist, she found the that they were alike as they gathered information for the benefit of Nazarick and Momonga. After his words of comfort that she possessed skills the protagonist lacked, it invigorated her to return to her duties with more passion.

Trivia

 * The protagonist is the first male homunculus to have made an appearance in the Overlord franchise series.
 * In the game, the player can choose who the creator of their protagonist will be. Among the options are: Nishikienrai, Beast King Mekongawa, and Herohero. The two who were not chosen from the lsit are treated as people who were involved in the creation of the character. In addition to that, the creator has no effect on later scenarios.
 * The protagonist is never visibly seen in the game as the scenarios are being taken from the player's perspective as the character. Though in Chapter 11 of the main scenario, Pandora's Actor uses his shapeshifting abilities to impersonate the protagonist.

Quotes

 * (To Momonga): “Being powerless is a less elegant way to say it is not essential to keep around.”