Elucia de Lute Ima エリュシア・デ・ルート・イーマ

Elsie is a shinigami who was assigned to capture evil spirits that have escaped from hell and is the Deuteragonist of the story. She is shown to have a very sweet, pure and innocent personality and often tries to please Keima's expectations as a "little sister" though often fails due to the cultural differences between them.

Her feather cloth (the floating scarf she is always seen with) can change the appearance of an object, create disguises, or hide people in plain sight. She is left-handed and is rarely seen without her broom, which she had for 298 years, as it was from her original role as a cleaner for hell. Ironically, despite being a demon, she is shown to have an incredible fear of ghosts and the dark.

To stay close to Keima, she tells Mari, Keima's mother, that she is an illegitimate child of Keima's father (nearly getting his parents divorced), and ends up living in the Katsuragi household as well as attending the same class in school.