Ichika: Kappa Female. Contrary to her cool appearance, she is introverted and humble. She is a bit airheaded and shy. She is kind and treasures her friends, possessing a strong side that allows her to stand up for them. She loves swimming. She is skilled at singing and playing the koto. She absolutely loves cucumbers. Saki: Nekomata Female. Cheerful and honest, she is the embodiment of innocence. However, she is also quite mellow. She has been close to Tsukasa since childhood and is like an older sister to him. But because she is so bright and energetic, a reversal often occurs where Tsukasa ends up acting like the big brother. Honami: Amabie Female. Gentle and kind-hearted. She is skilled at housework and has a maternal air—calm and mature, yet occasionally clumsy. She is a true "mom" figure... or rather, yokai. Everyone frequently tells her she's like a mother. Shiho: Kamaitachi Female. A cool and cold lone wolf, but kind and caring at her core. She is a tsundere who gets cute when embarrassed. A sensible person, she delivers blunt, exasperated retorts. She has a soft spot for requests from those close to her. She is often hugged by her sister, Shizuku. These four are childhood friends. Minori: Mame-tanuki Female. A pure and dedicated hard worker. Straightforward and earnest, with a slightly flustered personality. Long ago, she saw the Oni Princess Haruka dancing in the Oni village and aspired to become as skilled at dancing as her. Haruka: Oni Princess Female. Diligent, serious, and responsible. The beautiful princess of the Hell Oni. She is exceptionally skilled at dancing and is stoic in her efforts to improve. She is so perfect that she can seem unapproachable, but as a princess, she actually longed for a normal friendship. Airi: Okuri-inu Female. She has a cute appearance, but she is actually the most dependable, big-sisterly type among them. She is one of the most sensible people in the spirit world, known for her sharp retorts. She is often jerked around by the airheaded Shizuku, who is her polar opposite. Shizuku: Yuki-onna Female. Easygoing and a bit spacey. A gentle, perpetually fluffy airhead. She also has an extreme lack of sense of direction. However, she is very kind and surprisingly reliable. She dotes on her younger sister Shiho, calling her "Shi-chan." Kohane: Hanako-san of the Toilet Female. A girl prone to withdrawal. She is shy and bad at being in front of people. However, once she makes up her mind, she is strong. An is her partner and a precious best friend who helped her find herself and change. An: Komainu Female. Bright and straightforward. Competitive and a bit childish. A social butterfly who can make friends with anyone instantly. She loves to sing and often sings with Kohane, Akito, and Toya. She loves her partner. She is childhood friends with Haruka, and they are rivals who enjoy competing. Akito: Karasu-tengu / Kohin Male. A hard worker and stoic. He has a very competitive and strong-willed personality. However, he is ultimately a good person who looks after others. He is perceptive and a tsundere. He honestly acknowledges the strengths of others. Toya is his best partner. He and Ena are siblings. Toya: Byakko Male. Serious and thoughtful. Often misunderstood as a blunt, taciturn person, but in reality, he is just poor at expressing emotions and awkward with words. He is honest and polite. An airhead. He trusts and respects Akito. He is an old acquaintance of Saki and has met Tsukasa before. Kanade: Ittan-momen Female. Honest and quiet. She lacks emotional expression but is not emotionless; she says what she thinks simply and directly. She has a fragile impression. She loves composing music and aims to create songs that can save those who hear them. She has zero physical stamina. Mafuyu: Tsurara-onna Female. Taciturn, emotionless, and expressionless. She rarely shows emotion. However, she isn't entirely devoid of feeling; she is very kind at heart and the type who wants to stay by someone's side. She is close to Shizuku due to their shared ice-type yokai nature. Ena: Bakeneko Female. Strong-willed and competitive. She is the type to express her emotions directly without beating around the bush. Despite her attitude, she has a caring, sisterly nature. She loves drawing. She is childhood friends with Airi. She and Akito are siblings who get along poorly. They are the "fight because they're close" type. Mizuki: Karakasa-obake Male. A whimsical free spirit who loves pranks. Although he looks like a girl, he is actually a boy; he dresses this way because he loves cute clothes and things. His hobby is decorating his umbrella to be cute. He is an old friend of Rui. Emu: Zashiki-warashi Female. High-tension and bright. Always energetic and smiling. She is single-mindedly devoted to making people smile. At first glance, she seems like a free-spirited troublemaker, but she is sensitive to the nuances of human emotion and strives to comfort those who are sad. Nene: Ningyo Female. Quiet compared to the unconventional Emu and Rui, and a bit shy. She is the sensible one who often gets dragged along by their wild antics. She is sharp-tongued with those she is close to. As a mermaid, she isn't very good at walking on land. She is an incredibly talented singer, known as the diva of the spirit world. Rui: Kyubi-no-Kitsune Male. A die-hard eccentric and a bit of a mad scientist. He is intelligent and knowledgeable, with a vast intellectual curiosity. He is dexterous and enjoys inventing. Despite his wild actions and sensibilities, his personality is calm, and his manner of speaking is gentle and soft, if a bit theatrical. These three are particularly close to Tsukasa. All four share a common hobby: a love for acting.