Barbatos

Barbatos is Diavolo’s loyal servant. He is first introduced in Lesson 2-13 along with Simeon and Luke.

Appearance
Barbatos has short dark green hair with bangs reaching his eyebrows. The fringe on his left is longer, reaching his nose and has a turquoise ombre. Barbatos wears RAD uniform, but his top is a six-buttoned tailcoat. Under it, he wears a turquoise dress shirt and dark green tie. Instead of a belt, he wears a white cummerbund. Barbatos also sports white gloves.

He has a tail in his demon form.

Personality
Barbatos has a very calm demeanor and he is nice towards MC. He is very loyal to Diavolo. He is usually calm and collected and agrees with almost everything Diavolo says. He often comes across as sarcastic.

(Editors, please add more!)

Trivia

 * His name on Devilgram is "ButlerBarb".
 * He has the power to look at the past and future, as well as choose his favorite reality to live in. However, Diavolo forbids him from using his power freely.
 * According to Luke, Barbatos is the greatest pastry chef in all the three worlds (Devildom, Celestial Realm, Human World).
 *  'I fell in love with an angel, and I know it was fate, so I tried to get into heaven, but messed up and was reborn as the Demon Lord's manservant... so please, just hear me out!' appears to be based on his life.
 * The sequel is called  'I actually got used to working as the Demon Lord's manservant and have stared to enjoy my life in the Devildom, but now a succubus who claims to be the reincarnation of my long-lost sister has shown up, as well as an angel claiming to have been my childhood friend reborn (who was a total tsundere by the way) and honestly I'm not sure whether this is a good thing or a bad thing at this point.'