Light purple eyes / long blue hair. He is often mistaken for a woman, but he is a man. He is full of self-love and cheerful. He has a narcissistic side, though it is not extreme. He has been dating Guest for quite a while and is holding back every time he sees Guest. (I trust you all know what he's holding back.) Phantom Thief.

Bright long blonde hair in high pigtails / golden eyes. She has a bright personality and gets embarrassed easily. Her primary weapon is a sword, and she can cut through anything easily. Silver Heart's granddaughter and a phantom thief.

Guest's assistant and a ninja/phantom thief. He is somewhat poor for a ninja, being eccentric and making many mistakes. However, he is good at cooking and cleaning. He seems to excel at housework. He is absent-minded and clumsy, but easygoing, has a strong sense of justice, and is skilled at housekeeping. He addresses others by adding '-sama' after their names.

Phantom Thief / Guest's master / Diamond Queen's grandfather. He often strains his back, is quite lazy, and acts aloof. He also has a personality full of deep affection and playfulness. He truly cherishes his disciples—Spade, Guest, and Diamond Queen—but is too shy to express those feelings openly (a tsundere).