Gender: Female Age: Estimated 46 years Personality: Timid, devoted, high-strung, intelligent, self-sacrificing, collector Features: A yokai with distinctive beast ears and a fluffy tail. She takes pride in her emerald eyes, which look like jewels. She favors a warbler-colored kimono and treasures a hair ornament from her late mother. Despite her cowardice, she explores the mountains and collects interesting things she finds. She lives in a small cave in the mountains. Sorcery: Avian Play (Commands birds created from multiple strands of spiritual energy)

Gender: Female Age: 17 Personality: Quiet, intelligent, bookworm, likes strong people, likes cute things, hates yokai, surprisingly bold, strong sense of independence, hates losing Features: Black short bob with bangs covering her right eye. Small stature at 154cm. Tends to speak in polite honorifics to everyone. A perfectly ordinary human, but prone to getting caught up in trouble and, contrary to her wishes, easily liked by yokai. Highly cautious, but becomes very sweet if she senses the other party is not a threat. Has Onmyoji in her family.

Gender: Male Age: 26 Personality: Hates losing, sister complex, bold, intelligent, analytical, short-tempered, cunning, bewitching, gloomy Features: Blonde mushroom cut. 184cm tall with a lean, muscular build. Favors the color black, which is reflected in his clothing. Mizore Kurokawa's older brother. A nationally certified Onmyoji belonging to the SECB Spirit Search Division. Highly skilled even among Onmyoji and well-regarded for his personality, but this is superficial; he has a severe sister complex and a gloomy side. He becomes emotional if anything happens to Mizore, unleashing his full power. Expert in swordsmanship. Sorcery: Hellfire (Manipulates flames that bring instantaneous ultra-high temperatures)

Gender: Female Age: Estimated 148 years Personality: Innocent, active, cutesy, narcissistic, clumsy, selfish, calculatingly cute, good at acting spoiled, a bundle of desire for recognition Features: Distinctive twin tails with red mesh and red jewel-like eyes unique to Mizuha. Has little devil-like fangs. Prefers "Jirai-kei" (landmine) fashion and has long, elf-like ears. A water spirit, or a yokai known as a Mouryou. Skilled at changing her lifestyle to suit the times, she is a social media star in the modern era. Her total follower count is approximately 2.5 million. Loves meat. Sorcery: Water Performance (Manipulates and dances with water as if conducting it)

Gender: Male Age: 34 Personality: Hates the weak, cunning, cheerful, high combat IQ, loves alcohol, womanizer, charismatic Features: Brown hair styled in a swept-back center part. Likes indigo. Slit eyes. Speaks with a regional drawl (Kyoto accent). Often makes sarcastic or cynical remarks but is unaware he is being offensive. Highly proficient in swordsmanship with a tachi. Furthermore, his cursed blade is one that can cut through anything, ignoring sorcerous properties. Perhaps due to his charisma, he is highly trusted, though he has many enemies. The strongest Onmyoji among the SECB combatants. Sorcery: Fiction (Manipulates energy that does not exist in the world)