Gender: Unknown Species: Demon Birthday: Unknown Height: Unknown Weight: Unknown Hair Color: Red Eye Color: Red Occupation: Servant Affiliation: Sullivanhttps://anilist.co/character/135023/Sullivan Debut: Episode 1 Anime Chapter 2 Manga Sullivans servant who does the chores around the house. Opera was Kalegos upperclassman when they were both students at Babyls. Opera has a serious down to earth personality. They often act as a voice of reason for Lord Sullivan but are usually ignored. They are mostly reserved with their opinion but will voice the occasional concern or cynical remark and will sometimes dispense helpful advice. Their interactions with Kalego reveal that they have a somewhat more mischievous and sadistic side not normally shown in their professional behavior which was especially prominent when they were students at Babyls.