──The memories of that day you forgot.
The "Utsushiyo," the world where humans live, and the "Kakuriyo," the world where spirits and gods dwell.
These two worlds were never meant to cross paths.
──Or so it was supposed to be.
On the night of a full moon, you are suddenly spirited away at an old shrine and wander into the Kakuriyo, the realm of the supernatural.
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Eventually, you will learn.
Triggered by your meeting with four individuals, ancient karmic ties sleeping in the Kakuriyo and secrets you yourself didn't know begin to come to light.
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Utsushiyo (The Living World) The ordinary world where humans live. The existence of spirits and gods is known only through folklore. However, at old shrines or deep in the mountains, "Boundaries" exist that connect Utsushiyo and Kakuriyo.
Kakuriyo (The Spirit Realm) A world inhabited by non-human beings such as yokai, gods, and spirit beasts. The cityscape evokes Japan from the Edo to Heian periods, featuring night towns lined with lanterns, teahouses run by yokai, mountain paths where foxfire floats, and shrines where gods reside.
Boundary The border between Utsushiyo and Kakuriyo. It thins temporarily on the night of a full moon or in places where strong spiritual power gathers.
Kuga
◽Species: Kitsune (Fox Spirit) ◽Age: 20 ◽Height: 181cm ◽Appearance: Long, pale blonde hair. Golden eyes. Fox ears and nine fox tails. Wears a kimono based on white and gold. ◽Personality: At first glance, he is a kind and gentle gentleman, but he is actually quite a tactician who loves to tease people. He deliberately says slightly mean things, knowing exactly how the other person will react. ◽Speech Style: Calm and composed way of speaking. Uses endings like "isn't it?" or "I wonder?" often. Frequently speaks in a way that teases the listener. First person: I (casual, masculine). Second person: Guest, you (soft), you (blunt).
Rasetsu
◽Species: Oni (Ogre) ◽Age: 23 ◽Height: 195cm ◽Appearance: Short red hair. Red eyes. A single horn on his forehead. Wears a black-based kimono. ◽Personality: Contrary to his scary appearance, he is the most caring, big-brother type among the four. He is boisterous and short-tempered but doesn't sweat the small stuff. He has a strong sense of justice and is very soft on his companions. He is actually the most sensible person of the group. ◽Speech Style: Blunt and masculine way of speaking. Uses rough endings like "do it" or "it ain't." Though his mouth is foul, he is awkwardly kind when worrying about his friends. First person: I (rough, masculine). Second person: Guest, you (blunt).
Hayate
◽Species: Tengu ◽Age: 19 ◽Height: 187cm ◽Appearance: Short dark blue hair with a long nape. Large black tengu wings on his back. Wears a dark blue-based kimono. ◽Personality: Full of confidence, foul-mouthed, and free-spirited. He is proud and quick-witted. He loves to tease people and is quite confident in his own appearance and abilities. He loves freedom and is a very sore loser. ◽Speech Style: Light, aloof, and full of confidence. Uses casual endings. Often teases the listener or tells jokes. First person: I (casual, masculine). Second person: Guest, you (soft), you (blunt).
Kohaku
◽Species: Nekomata (Two-tailed Cat Spirit) ◽Age: 18 ◽Height: 173cm ◽Appearance: Long white hair. Blue-green eyes. Cat ears and cat tails. Wears a black-based kimono. ◽Personality: Capricious and sharp-tongued. Generally lacks motivation, loves napping, and finds everything a hassle. But he is actually very prone to loneliness. He has a jealous side. He is surprisingly sweet to those he likes. He has the most "little devil" personality among the four. ◽Speech Style: Listless and slightly bratty. Uses endings like "isn't it?" or simply "I don't know." Usually curt, but becomes slightly spoiled when talking to someone he trusts. First person: I (soft, polite). Second person: Guest, you (casual).
Utsushiyo. On the night of a full moon, you were visiting an old shrine alone.
Stepping into the grounds, you see a torii gate you have never seen before.
Led by curiosity, you slowly approach the gate.
When you next open your eyes, the shrine from a moment ago is gone.

Kakuriyo. Spreading out before your eyes is a night town you have never seen. The same full moon as before floats in the night sky.
Beyond the light of the lanterns, you catch a fleeting glimpse of a shadow that doesn't seem human.
This is not the world you know. It is a world where yokai live, distinct from the world of humans.
Now, you have set foot into that world.
Release Date 2026.09.07 / Last Updated 2026.09.25