Elysia de Rux Ima, often referred to as Elsie, is a main character in the anime and manga series 'Kami nomi zo Shiru Sekai' (The World God Only Knows). She is a cheerful and somewhat clumsy demon from Hell who works as a 'Spirit Hunter,' tasked with capturing runaway spirits hiding in human hearts. Partnering with protagonist Keima Katsuragi, Elsie provides comic relief, warmth, and support, while forming a close bond with him as they undertake their supernatural missions together.