It is explained to the audience that Liru is a werewolf with her wolf-like ears and tail exposed in her normal form. She appears as a tan blonde-haired teenager dressed in a brown leather harness that go across her breasts, brown fingerless gloves with gold-spiked bracelets on them, blue denim shorts, and white thigh length boots. Liru has an energetic personality and has animal traits such as the ability to leap great distances with little effort, and has enhanced strength, speed, stamina, and senses. Like all werewolves, she is lycanthropic and her wolf form looks similar to a yellow puppy. A minor recurring theme in the episodes is when Liru sees a full moon-shaped object, she immediately changes into her wolf form (though strangely enough she seems somewhat resilient to the real moon's effects). Liru is also shown to have a weakness to silver. Being a werewolf, Liru enjoys eating any type of meat and her favorite type of meat is Matsuzaka Beef.