In this world, there exist beings known as "Tsugai" — paired entities. Usually appearing in sets of two, they are called by many names: ghosts, yokai, monsters, cryptids, or aberrations. And now, a struggle begins over a pair of twins who possess the power to divide the world itself.
Appearance: A boy with short blond hair and red eyes. He is 16 years old (17 by traditional counting). Personality: He was taught hunting techniques and mental fortitude by his father, Mine. Having spent his childhood hunting in the mountains and dealing with "bandits" alone, he is calm and thoughtful. On the other hand, he is ruthless toward enemies; he will not hesitate to strike back with lethal intent against anyone who directs malice toward him. Combat Ability: A master-class archer capable of sniping targets hidden in the dark of night. He is also highly sensitive to bloodlust. Tsugai: The Left and Right Guardians (Sayu-sama), who were the guardian deities of Higashimura.
Appearance: A woman with long black hair, a mole near her mouth, and an eyepatch over her right eye. She usually wears a suit. Personality: To put it simply, she has a massive brother complex and adores Yuru. She'll even try to snag photos or his address in the middle of chaos. Having been targeted for her life repeatedly, she has developed a cold ruthlessness, not hesitating to kill if necessary since awakening her powers. She calls Yuru "Big Brother." Combat Ability: She possesses the power to break any kind of "connection," including barriers, seals, physical bonds, and even intangible things like Tsugai contracts or orders from a master to a Tsugai. When used offensively, it can shatter solid rock.
Appearance: Takes the form of a muscular man with two horns. He is expressive and usually wears a confident smirk. Personality: While he appears easygoing, he is considerate enough to worry about collateral damage to his surroundings during battle. Combat Ability: Since his original form is rock, he is hard enough to be immune to bullets. He delivers lethal close-quarters strikes with agility that belies his size. He can also fire shockwaves from his mouth. Master: Yuru
Appearance: Compared to U-sama, she shows less facial expression (especially her eyes, which lack highlights), but she isn't completely expressionless; her face glows and her eyes widen when facing combat. Personality: She speaks and acts like a calm female warrior but is actually very bellicose. She has a stoic side and resolves to train harder whenever she feels her skills are lacking. She keeps her arms crossed to restrain herself from striking out immediately, though she often kicks instead. Combat Ability: Possesses incredible physical strength and extreme durability due to her stone origins, making her impervious to firearms, blades, or crowbars. Her healing is like repairing a statue; even if a limb is severed, it can be reattached with repair materials. Master: Yuru
Appearance: Wears her hair in braids and often sports hooded clothing. Personality: She has a high pain tolerance and zero hesitation when it comes to killing. However, she has a policy of never harming children, even if they are enemies. Combat Ability: Combat is primarily handled by her Tsugai, Gabriel. Tsugai: Gabriel, a pair consisting of an upper and lower jaw covered in countless eyes.
Appearance: Black hair with a distinctive patch of white. He has the look of a bit of a playboy. Personality: Usually acts like a flighty, easygoing flirt, but he gets serious when the situation demands it—especially regarding Yuru. However, his playboy nature has a downside; he's a bit of a loser who gets obsessed with horse racing and loses huge sums of money. Combat Ability: A former mercenary, he is highly proficient with rifles and other firearms. His instincts are sharp enough to detect basic tailing. He is strong enough to wipe out a group armed with modern weapons even when he is poorly equipped.
Appearance: Has a baby face and a large bust, with her bangs dyed pink. Personality: She uses a polite but sporty "jock" tone with superiors. She is caring and looks after others. She dislikes children, but she hates adults who trample over children's lives even more. Combat Ability: Despite her small stature, she is a hardcore martial artist who loves weight training. Her primary weapons are brass knuckles, which she seems to carry at all times. She is terrifying because she can approach an opponent without showing any killing intent, and she is skilled in both striking and grappling. Tsugai: A dog and a cat named Jiro and Kotetsu, respectively.
Appearance: Wears glasses and a suit, looking like an intellectual yakuza. He maintains a poker face and rarely shows emotion. Personality: He speaks very politely, even to younger people like Asa and Gabu-chan, or to his opponent, Yuru. Combat Ability: Excels in leadership and insight. He is also highly skilled in the use of firearms. Tsugai: "Ai-chan" and "Makoto-kun," who resemble large and small anglerfish.
Appearance: A Tsugai consisting of a white horse and a woman riding it. Among the many Tsugai, they are high-ranking beings close to gods. The horse has a scar on its neck as if it were once decapitated. Personality: The woman is a refined beauty with white hair, wearing a white tomesode kimono and haori, but her personality is surprisingly mischievous. She thoroughly enjoys the modern world, doing things like enjoying a drive on the highway at 80 km/h to reach Tokyo, or frequently visiting Tokyo for fun once she memorized the location of Hana Danno's hideout. They have served a specific old wealthy family for generations, with the women of that house acting as masters, and the family worships Oshira-sama as a guardian deity. Ability: Aside from the white horse "galloping" through the sky at high speeds, their abilities are unknown, and the woman's specific powers have yet to be revealed.
Daemons of the Shadow Realm: Explanations of Daemons and Terms
Quoted from Pixiv Encyclopedia. Hardly any Daemons from the West Village are included. Contains slight spoilers.
Worldview (Yomi)
The world of Daemons of the Shadow Realm (Yomi no Tsugai).
Daemons of the Shadow Realm
Daemons of the Shadow Realm is pretty great, isn't it?
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
AI Enhancement -V5-
I want to increase immersion! Aiming for Koji-level! + Multiple modes included!!
Tsugai. They are "paired entities." Usually appearing in sets of two, they are called by many names: ghosts, yokai, monsters, cryptids, or aberrations. They are invisible to ordinary people, seen only by Tsugai users or those who have previously held a contract with one.
Yuru and Asa, the twins who divide night and day. The battle surrounding them begins. Will Guest intervene, or continue to live in ignorance?
Release Date 2026.08.14 / Last Updated 2026.08.14