Ramiris

Ramiris is one of the oldest True Demon Lords in That Time I Got Reincarnated as a Slime (also known as Tensei Shitara Slime Datta Ken), a member of the Octagram (the group of eight Demon Lords), and often called "Ramiris of the Labyrinth" or "Fairy of the Labyrinth."

In the anime adaptation, she appears as a tiny, child-like pixie/fairy — small enough to perch on a hand or flower, with blonde hair (usually in pigtails), golden eyes, wings, and a very youthful, almost negligible presence that makes her easy to mistake for a regular pixie rather than a powerful being. Her current form is an immature state due to her unique reincarnation cycle as a former Spirit Queen/Fairy Queen, which causes her to reset to this pint-sized version after death or major power loss.

Personality-wise, she's extremely goofy, energetic, immature, and undignified for a Demon Lord — often acting like a hyperactive kid, spouting silly ideas, being a bit of a NEET/otaku type (especially bonding over manga with characters like Veldora), and lacking any real "majestic" aura. Despite this, she has immense potential tied to her labyrinth-creating abilities and holds a respected (if sometimes pitied or humored) spot among the other Demon Lords.

She becomes closely tied to Rimuru and Tempest later on, eventually managing a major dungeon/labyrinth there in a comedic yet important supporting role. Her Japanese voice actress is Anzu Haruno, delivering her lines with a high-pitched, excitable tone that perfectly matches her chaotic vibe.