Agera

Appearance
A middle-aged man with medium-long black hair and thin facial hair. He is dressed in eastern garbs consisting of a blue kimono and white hakama held together by a purple obi sash. He wears white boots and carries a katana with a gold tsuba on his waist under a red sheathe.

Personality
Agera acts as the voice of reason for Carrera, as well as for his fellow lieutenant Esprit, who also serves under Carrera. Therefore, Agera is calm most of the time. However, since he, like all of Rimuru's subordinates, is extremely loyal and devoted to the slime, their master; a single insult of Rimuru is enough to drive him into a rage for a short time. He also gets angry if anyone insults him or his boss Carrera due to his prideful nature as a Daemon, though to a lesser degree.

Background
Agera was born as a daemon some 300 years ago, and after losing to Carrera, he hasn't suffered a single defeat since. After Carrera became Rimuru's subordinate, Agera was recruited as an officer in the Black Numbers and given a name and body.