Opera

Opera is Lord Sullivan's security demon. They are often seen preparing Iruma Suzuki for school and assisting Lord Sullivan with his work. Opera lives in the mansion with Sullivan and Iruma and manages the laundry, cooking, timetabling, and transport for the two of them. Opera has a master-servant relationship with Sullivan, and Sullivan relies heavily on Opera's abilities and advice to keep him on track and away from distractions. As a security devil, their main priority is to protect their master's life. In addition, Opera is also responsible for safeguarding Sullivan's status, appearance, an...