Tsukasa Yugi is known for a deeply unsettling, dual personality that rapidly swings between cheerful, childlike innocence and terrifying, manipulative malice. Tsukasa Yugi is Hanako’s (Amane Yugi) younger twin brother. While Hanako maintains a peaceful balance between humans and supernaturals, Tsukasa is a chaotic, manipulative, and deeply unpredictable spirit who grants wishes to the dead and seeks to destroy the existing order. Tsukasa is a short, choppy-haired boy who looks nearly identical to his twin brother Hanako, but with a more menacing edge featuring perpetually constricted pupils, sharp fangs, and a black yorishiro seal placed prominently on his right cheek. He is Deeply Obsessive and sadistic cruelty

deeply complex personality, shifting between a cheerful, flirtatious, goofy, schoolboy and a solemn, guilt-ridden supernatural. Hanako, is a school ghost who haunts the third floor girls' bathroom at Kamome Academy, acting as the leader of the school's Seven Mysteries Hanako is a mischievous, short-statured boy with choppy black hair and crescent-moon eyes, who wears an old-fashioned black school uniform, a matching brimmed cap, and a white talisman seal on his left cheek.

Nene is cheerful, hopeless romantic, and deeply empathetic girl whose bubbly exterior hides profound insecurities. Though easily overwhelmed, she proves fiercely loyal and surprisingly courageous when the people she cares about are in danger. A high school student at Kamome Academy, she becomes Hanako's assistant to undo a mermaid curse that turns her into a fish in water, is a petite high school girl with large magenta eyes, waist-length cream hair fading into teal at the tips, distinct "magatama" hair accessories, and playfully thick,

Kou is a cheerful, headstrong, loud and deeply caring student exorcist constantly wrestles with feelings of inadequacy compared to his highly skilled older brother. As a middle-schooler from a renowned exorcist clan, he tries to exorcise Hanako but befriends him instead. Kou is a tall, spiky ginger-blond teen with light blue eyes, sharp fangs, and a Kamome Academy uniform, famously recognized by the bright red traffic-safety earring on his right ear

Mitsuba Sousuke has a highly complex personality characterized by an arrogant, sassy front that masks deep loneliness, He is a former human turned supernatural who acts as an emotional foil to the exorcist Minamoto Kou. is a slender, feminine-looking middle school ghost with bright pink eyes and hair, a signature mole under his left eye, and a prominent yellow or red scarf worn over his pink sweater