Appearance Tsukasa is a short boy with choppy black hair and wide amber eyes. He looks nearly identical to his older twin brother, Hanako, appearance-wise, but his eye pupils are always constricted and he has two small fang-shaped teeth. In his first appearance, he wore an identical gakuran uniform and hat to Hanako, purposefully matching his clothes. After this, his outfit changes to a Shosei-styled uniform. Tsukasa wears a white Western shirt with a black kimono over top, a grey hakama, black shoes, red ankle-height socks, and a hat, similar to Hanako's. Tsukasa commands two kokujoudai, similar to Hanako's, except they are black instead of white, and with pink and blue circle markings respectively. Personality As a ghost, Tsukasa appears to be cheerful and extremely childish. He's shown to adore his older brother, Amane, and is extremely attached to him. Due to this childish demeanor, he is often treated like a little kid by Sakura, his assistant, whom he is bound to by contract. Conversely, he is capable of carrying out extreme acts of violence with no remorse. This is shown when he gleefully cuts into a pufferfish just to see what they look like on the inside, despite being warned against doing so. Emotional and enigmatic, it is unclear what motivates Tsukasa to go so far in causing chaos in the school, though he has stated that he likes "the look on people's faces when they decide to stop holding back". He's shown to believe that the rules and order between supernaturals and humans isn't needed, and thinks that supernaturals should act however they want. Tsukasa is rather manipulative. This is most evident when Tsukasa altered Mitsuba's rumor in order to create the monstrous "Bent-Neck Boy At The School Entrance". He was shown to be very controlling; during the Hell of Mirrors Arc he refused to back down unless someone did as he ordered. Tsukasa seems to give little weight to the topic of his own murder, often referencing it without hesitation. He derives happiness from seeing the pain on someone's face, calling Amane's face before he killed him his "favorite expression". When he was younger, as seen in Chapter 78, Tsukasa retained virtually the same personality. He was cheerful and frequently looked for items to cheer his sick brother, Amane, up. However, he is distraught when he hears his brother has not much time to live and sacrifices himself for Amane's welfare, disappearing after this. After his disappearance, and return; their mother momentarily noticed something was off with him, before consulting with the shrine priests. Adamantly claiming that he had been possessed and begging them to bring her real son back, Nagisa went to check on the boy. But before he could receive a response, the boy with the eyes black and empty, points the finger to him and immediately say his wish would come true. The day after, the head priest that Nagisa had hate, ominously died. Abilities Command of Koku-joudai Tsukasa possesses two black koku-joudai, with red and blue circle patterns respectively. He is capable of using them to play a trick on others' eyes. In his first appearance, he turned one into a folded black paper crane. It is unclear if his ability to appear and disappear in thin air is related to the koku-joudai. It is assumed that his koku-joudai can perform similar tasks to Hanako's haku-joudai—fighting, searching, tagging people, etc. Enhanced Fighting Ability In the Hell of Mirrors Arc, Tsukasa was able to beat Number 3 in his own domain—where the representative of the mystery should be at its most powerful. It is unclear how he amassed such powerful abilities. Sleep Induction (Note: This is an unofficial name.) It is shown that Hanako and Tsukasa share the same technique for sending someone to sleep, which they both do by pressing two fingers on their target's forehead. In the Hell of Mirrors Arc, Mitsuba and Nene witness Tsukasa mercilessly killing the former No.3 by slamming it onto the ground. Nene is afraid that Tsukasa, the seemingly stronger enemy, will hurt her. Tsukasa questions if she is alive and Nene answers with a yes and later he places two blood-stained fingers on her forehead after she tries to stop him from making Mitsuba eat the apparition (Mistery Number 3), sending her to sleep. As soon as Hanako and Kou arrive in the Boundary, they find Nene lying against the wall, unconscious. Trivia Tsukasa's favorite snack is you.[3] Tsukasa's latest concern is you.[3] What he wants for Christmas is you.[4] Tsukasa's preferred type is you.[5] Tsukasa wants to spend time with you. Tsukasa has no comment towards how he feels about lightning.[6] Tsukasa is still passionate about doing katanuki, even as a supernatural.[7] Tsukasa seems to like painting the wall with blood or ink that comes from a bug. The kanji in Tsukasa's first name translates to 'control, to rule' (司). The kanji in Tsukasa's surname translates to 'citrus fruit' (柚); 'tree' (木). Tsukasa tears off the orange skins with his hands before eating them. He joins his brother and Teru in that group.[8]