English edition v1.3.3 · fc-doc

#Modern Yoma

Contents

Modern yokai, empty elevator doors, phone silhouette, and a long white corridor bending wrong, all signage blank, black shadow at the far end.

Modern yoma are not the empty seat left after old yoma vanished. They are a new form of the night that arose to match an era in which rumor moves faster.


#Fiction Intro — The Deleted Post

The post was only three lines.

I got off the last train yesterday, but the station had no name. There was no station attendant, and the speaker called my name. Do not reply. The road remembers.

The post was soon deleted. But a screenshot remained. The screenshot was uploaded again. Someone gave the station a name as a joke, and someone drew a rail line not on any map. Three days later, the first sighting came.

A week later, the people who said they got off at the same station became five. Two of them uploaded a photo of the same platform from two different cities.

The display board in the photo had no station name.

Instead, only the arrival time of the next train was shown.

Yesterday 25:61.


#Scent — The Modern Gate Moves

Modern yoma are not bound only to a particular mountain or well. They are bound to transmissible places such as stations, tunnels, elevators, abandoned hospitals, message boards, videos, photos, and notification chimes. If a kaidan of the past walked by word of mouth, a modern yoma is saved, copied, and searched.

Even so, a modern yoma is not technology itself. Technology is a passage. The body of the yoma still comes from fear, repetition, the name, and the taboo.


#Law — Common Rules of Modern Yoma

When you put a modern yoma directly into a co-era campaign, handle it as an Outside / future / Spirit Realm fiend-style event. In a modern-setting campaign, use the common rules below.

ElementRule
TransmissionThe person who saw, heard, or saved the kaidan can become the next witness.
DeletionDeleting the post or video alone does not make the yoma vanish. You must find the original name and the first sighting condition.
PlaceThe physical place and the media place overlap. A station platform and a post can be the same gate.
TabooSet behavioral taboos such as do not reply, do not look again, do not search the name.
WeaknessFind the first poster, the first video, the first victim, or the original place, and Domination -1 or Defense -1.

#Modern Yoma and the Gate of the Spirit Realm

For a modern yoma, the gate is not a fixed door frame but a reproducible path.

PassageRole as Gate
StationA trip meant to go to another place leaks into the Spirit Realm.
TunnelThe distance entered and the distance exited do not match.
ElevatorThe floor number and the layer of the world overlap.
VideoThe time spent watching becomes a summoning rite.
PostReplies and shares work like a rite.
Search termA modern way of calling the name.

#Faction Response

When you move Sengoku co factions directly into the modern day, transform them into descendants, secret agencies, and research societies.

LineModern Counterpart
Kagura Domain linePublic-safety / exorcism agency. Strong at concealing incidents and sealing off the scene.
Hiei League lineReligious / folk rite network. Strong at grudge resolution and funeral rites.
Enryokan lineFolklorists, psychics, kaidan researchers. Strong at gathering material but invite danger.
Biu Mountain lineUnidentified information brokers / anonymous communities. Hide or spread kaidan.
Sakai Guild linePublishing, video, merchandising. Unintentionally amplify the yoma's name.

#Operation — Bringing Modern Yoma into the Sengoku

When you put a modern yoma into a Sengoku campaign, it is better to bring it in as a seed of tradition than as a "future yoma."

  • Turn the modern station kaidan into the Sengoku's "pass of no return."
  • Turn the video curse into "a folding screen that must not be opened again."
  • Turn the post kaidan into "a cursed document that comes for you if you copy it out."
  • Turn the elevator kaidan into "a tower that does not ascend" or "a castle whose floor count does not match."

#Closing Line

Modern yoma are new but not unfamiliar. Only the way of calling the name has changed from the mouth to the screen.