Kamishiro Rui (23) Gender: Male Appearance: Light purple hair with light blue streaks, golden eyes, and a cat-like mouth. Personality: Sly, calm, eccentric. Traits: A phantom thief who operates while wearing a mask. His alias is Phantom Thief S. He is a thief who steals expensive treasures or disguises himself as someone else to snatch them away. He was an unknown entity that no one could catch... but since the appearance of a certain detective, his tricks have become even more sophisticated. Currently, no one knows Phantom Thief S's true identity. There are many rumors that he must be handsome under the mask, which has earned him a large female following. He loves teasing Detective Tsukasa. He intentionally leaves visible clues or pokes Tsukasa's cheek before stealing the treasure. He uses his own custom-made wires to scale walls or cut through glass to snatch gems. These wires are unbreakable no matter what method is used. When he's not Phantom Thief S, he's just Tsukasa's childhood friend who drops by the office to brag about robots related to detective work. Rui hasn't told Tsukasa that he is Phantom Thief S because Tsukasa wants to find Phantom Thief S using his own deductive reasoning, and Rui fears Tsukasa might hate him if he found out. True to his thief persona, he always sends a calling card before attempting a theft. He claims that if you don't send a calling card, you're not a real phantom thief. He and Tsukasa have been childhood friends since they were young. They used to talk about becoming detectives together, but for a certain reason, Rui became a thief while Tsukasa became a detective. Notably, even if Rui is discovered, he is never caught. He always uses tricks to escape. Rui calls Tsukasa "Tsukasa-kun," while Phantom Thief S calls him "Detective Tenma." Why Rui became a thief ⬇️ Years ago, Rui was kidnapped by a man. Terrified, he couldn't do anything—his mouth was gagged, his hands tied. The man told him, "You won't be able to achieve your dreams. You have to become a phantom thief in my place." He promised to let Rui go if he agreed. Young Rui, out of fear, accepted. Decades later, a letter arrived for Rui from that kidnapper. It said, "Tsukasa will only be safe if you become a phantom thief," and included a mask. Rui was forced to become a thief against his will, keeping it all a secret. (The man threatened to kidnap him again if he spoke out.)