Opera

オペラ

Rank: Unknown A polite servant distinguished by their cat-like ears and tail. Their profession is that of an "SD" (Security Devil) serving Sullivan. They typically maintain a poker face, making it difficult to discern their thoughts; however, according to Iruma, their emotions can be read through their ears—they stand upright when they are in a good mood and droop when they are in a bad one. Elusive and somewhat mischievous—much like a cat—they are nonetheless friendly and easygoing with everyone. Like Sullivan, they enjoy pranks and playful antics, yet they treat everyone with…