After joining Tempest he has become more reliable. He got rid of that sharp personality and mellowed out.
Bester is an unexpectedly useful dwarf. Rather than politics, he is made for science. He was very boring when he was obsessed with political power.
Unusually for a dwarf, Bester is of a slender build, and rather tall, but around the height of a normal human.
Vester was the son of a marquis and second-in-command of Dwargon's engineering corps. He often argued with Kaijin, head of the engineering corps. At some point, the corps launched a magic-armor soldier project. Kaijin warned Vester that he was proceeding too quickly with the project, but his advice was ignored. A failed experiment grounded the project to a halt, and Vester put the blame on Kaijin. Kaijin took full responsibility and resigned from the corps.
He requested Kaijin and co. to create 200 steel spears and 20 magisteel swords, fully aware that Kaijin will struggle with the order.
He later discovers the group at a nightclub, and mocks Rimuru. This caused Kaijin to punch him, leading to the group's arrest. He bribed their lawyer to frame them, but Gazel Dwargo knew the truth and exiled them instead. After Rimuru and Kaijin's group left, Gazel expressed his disappointment at Vester's actions, and stripped his title of minister.
Life in the Royal Capital Arc
He was brought to Tempest by Gazel to work under Rimuru. After apologizing profusely for his past actions, he was tasked with creating healing potions.
He and Gabil are rather compatible. Because of that he was allowed to reside in the Sealed Cave. The cave happened to be the perfect atmosphere for science experiments. Gabil assigned two of his subordinates to guard Bester. Later, he joined with Ramiris in her labyrinth to conduct research.
He has indulged in sorcery. However, according to Kaijin, he in not too good at it.
- Kaijin: For Bester who was a noble, it was humiliating for him to be forced to take orders from a commoner.