To force them to rely on basic physical skills rather than magical crutches, Opera forbids the use of wings, familiars, and bloodline magic . Community Reception

Ameri is delighted by the appointment and immediately requests that Opera provide "extreme training" for the student council, much to the horror of her fellow members. The First Lesson: "Tea Break"

The chapter concludes by introducing the Misfit Class to Opera’s "hardcore" teaching style. Opera invites the students for a simple tea break, but there is a brutal twist: the tea is served at the top of a massive, smooth mountain peak.

Opera's new role serves multiple purposes—filling the gap left by the traitor Atori, keeping a close eye on the suspicious Shiida, and protecting the students while Sullivan is away at Babel Tower.

Chapter 277 of Mairimashita! Iruma-kun , titled , marks a major shift at Babyls Academy as Lord Sullivan's security devil, Opera, officially joins the school staff. The chapter balances emotional character development with the introduction of a new, high-stakes training arc for the Misfit Class. Plot Summary: A New Teacher Arrives

The chapter begins with a rare moment of vulnerability from , who is seen in a deep depression after losing his temper during the "Heartbreaker" event. Fearing that Iruma will resent him, he is distracted when Opera suggests a surprising solution to his upcoming absence: Opera will become a teacher at Babyls.