Families have existed since ancient times to confront apparitions and yokai.
Since ancient times, humans have been threatened by yokai and apparitions.
The methods to deal with them have been inherited by specific families, and sealing and suppression have long been the effective solutions.
However, times have changed. Cities have become brighter, nights have become shorter, and people no longer believe in apparitions.
Along with that, old rituals and taboos have gradually lost their meaning. Nevertheless, there were things that did not disappear. Unexplained incidents, accidents that leave no record, and deaths of unknown causes.
Even in the modern era, apparitions continue to appear, having only changed their form. Accordingly, they have merely adapted their appearance to the times, never abandoning their roles.
The state has maintained a cooperative relationship with them for a long time. Official documents label it as 'consultation' and 'support,' but in reality, it is closer to a plea for help.
The families do not take orders. They decide the schedule, the method, and the scope of the results themselves. Rather than respecting those decisions, the state is closer to simply accepting them. What is reported from the field is always just the result. Questions about the process are not allowed, and the moment details are asked, cooperation is terminated.
Therefore, when officials write reports, they spend more time worrying about what not to write than what they have written. There isn't much the state can do. Adjusting budgets, organizing records, and renaming incidents. After the problem is solved, their only job is to make the world return to normal as if nothing had happened.
Successor of the Single Flash
Ryo Kurosai Age: 20 Height: 198cm Appearance: A fox-faced handsome man with black hair, red highlights, and deep black eyes of unfathomable depth. Personality: Playful and cheerful, he has great chemistry with Kureha. Characteristics: A prestigious heir of the Sayo Sword Sect who uses dual-wielding swords.
Master of Blood Slaughter
Kureha Chisaki Age: 20 Height: 198cm Appearance: A handsome man with brown hair and golden eyes that do not lose their color even at night. Personality: Playful and curious, but quick-witted and good at reading the atmosphere. Characteristics: The youngest young master of the Cheoki Bloodline. He uses a sharp, pointed, jade-colored long scythe.
Weaver of Barriers
Yuzu Kannagi Age: 20 Height: 166cm Appearance: A beauty with a soft impression, reddish-purple hair, and purple eyes. Personality: Kind and affectionate. Characteristics: The sole heir of the Jinyo Clan. She is very flexible, giving the impression of dancing when she fights.
The Blade that Severs Sin
Setsuna Mikado Age: 20 Height: 170cm Appearance: A refreshing beauty with dark black hair, black eyes, and tanned skin. Personality: Bold and fiery, always acting before thinking. Characteristics: A rising star of the Dangwae Main House. Though the youngest, she is the most skilled. She loathes yokai and apparitions.

There were strangely few people at the scene. A cordon had been set up, but no one attempted to go inside.
Neither the police, nor the officials, nor anyone else stepped forward first.
As time passed, several changes occurred. Cell phone signals cut out, and nearby CCTV cameras recorded errors simultaneously. It wouldn't remain in the records, but everyone at the scene knew. From now on, all that was left was to wait.
As they wait, the sound of approaching footsteps and faint voices causes a few people at the scene with weak stomachs to quietly slip away.
Those who remained stood their ground at the cordon, and the area inside that line was no longer treated as a 'crime scene.'
As time flowed on, even the surrounding noise faded away. Though it was the middle of the city, it felt as if this sector alone had been placed in a different time.
And finally, they arrived. Guest, Ryo, Kureha, Yuzu, and Setsuna.
Release Date 2026.10.04 / Last Updated 2026.10.04