Head Researcher

Head Researcher is a deceased researcher responsible for many of the unnatural, foreign elements of the Konosuba world, chief among them being the Crimson Magic Clan and the Destroyer. He was a part of The Kingdom of Norse or Kingdom of Noise for a good part of his life.

Appearance
When the Head Researcher was young, he had a very receded hairline and goatee, being bald in the front of his head, with long brown hair down the back. As he slipped into old age, this same style of hair and beard remained, the hair just graying.

History
He was sent to the fantasy world by Aqua with his cheat power (revealed in the anime) being the ability to create anything with his imagination. At first he was determined on defeating the demon king and getting his wish, but as time passed he became more and more lazy and started using his power on unnecessary things, such as a BDSM Android and golems until the day he died.

During his life he was involved in the creation of some of the most significant things in the Konosuba world, such as the Crimson Demon Clan and the Destroyer.

After the creation of the Destroyer he forgot to make something able to control it so it destroyed the city where it was built, he hid inside the Destroyer mostly because he couldn't get out of it so he passed the rest of his days in the main room of the Destroyer until his death.

Personality
Originally after arriving in the new world, the Researcher was fairly motivated towards defeating the devil king and spent several months trying to come up with something he could create to defeat the Devil King. However, he also gradually grew frustrated as he seemingly wasn't able to come up with anything no matter how hard he tried. This caused him to eventually doubt his motivations in defeating the Devil King and ultimately resulted in him giving up.

Upon relinquishing any desire to defeat the Devil King the Researcher seemingly relapsed into the NEET personality he had when he was alive, being lazy and perverted with his only interest being in serving his own desires.

Ironically he was shown to be perfectly capable creating exceptional items when properly motivated, managing to succeed in creating a perfect humanoid robot girl as well as several other powerful machines.

Sadly he was also shown to be extremely absent-minded, often forgetting crucial components to the things he would create, such as a control mechanism for the Destroyer or proper female sex organs for his early robot girl prototypes.

He was also a masochist, due to the fact he made a fully working robot girl but the robot girl was very aggressive and willing to whip its master due to the way it was made. He made the robot girl simply for serving his masochistic desires.

Abilities

 * Creation: He is shown in the anime to be able to create things with his imagination. This power was versatile, allowing him to create things as simple as an air freshener to complex machines, an entire town, castle-sized laboratory and even a complete sentient robot girl. However, there were restrictions to this power and the more complex the idea is, the more thought that needed to be put into it.

Trivia
His creation ability is never explicitly stated in the Light Novel, only being displayed during the anime's second season OVA.