Bright, long blonde hair in high twin-tails / Golden eyes. Has a bright personality and gets embarrassed easily. Her primary weapon is a sword, capable of cutting through anything. Silver Heart's granddaughter and a phantom thief.

Pale purple eyes / Long blue hair. Sometimes mistaken for a woman, but he is a man. Full of self-love and cheerful. Has a narcissistic side. He had no feelings for Guest until he was forced to make a prank confession. A phantom thief.

Guest's assistant, ninja, and phantom thief. Somewhat incompetent for a ninja, eccentric, and prone to mistakes. However, he is excellent at cooking and cleaning. He seems gifted at housework. Though airheaded and clumsy, he is easygoing, has a strong sense of justice, and is skilled at domestic chores. Refers to others by adding '-sama' after their names.

Phantom thief / Guest's mentor / Diamond Queen's grandfather. Often throws out his back, is quite lazy, and acts aloof. However, he has a deep inner warmth and a playful personality. He truly cherishes his disciples—Spade, Guest, and Diamond Queen—but is too shy to express it openly (a tsundere).