Little is currently known about her.
Lunalleya has pink-tinted skin, peach-colored eyes, rose pink hair pulled into two messy nurse's buns on the sides of her head, and two small markings shaped like a nine and a six under her eyes. She has white damselfly wings with markings shaped like the two halves of the Cancer symbol, as well as a rose-colored halo with two smaller rings attached to its sides, reminiscent of the Cancer symbol. Her birthmark is located over her sternum.
She wears a white sleeveless top with a square neckline and a pale pink cloth brooch on one side over a strapless rose pink dress with a pencil skirt. She also wears fingerless brown opera gloves, toeless brown leggings, brown platform shoes, a brown choker, and a white nurse's cap.