#About This Book — Jiku Denkitan (時空伝奇譚)

Contents

Authority. This document is Fiction-Only — there are no rules and no numbers here. The authority divisions of the whole volume (Variant, narrow Canon, Scene Tool, Fiction-Only) and the premise of GM permission are laid out by the §Authority Guide below. And the one thing that does not change whichever document you open — fc cannot override the co canon (Canon).

#Opening Fragment — The Inventory of the First Night

The fire caught only on the third try. The lighter lit on the first, but the branches that had drunk the night dew would not easily obey.

"Turn the phone on again. You never know."

"I looked at it twenty times coming down the pass." Even so, the woman pressed the power button. The light of the screen wet the two faces blue, and at the antenna place the same two characters were floating as before. Out of Range (圈外). "Battery forty-seven. ...Shall I turn it off now?"

When the screen went out, the dark drew a hand's breadth closer. The man pulled the backpack at his feet, opened the zipper, and began to take out what was inside, setting it one by one on his jacket.

"What are you doing."

"I mean to count it."

One water bottle — half left. Two chocolates bought at the rest area. One spare battery, its remaining charge three bars out of four. A folding umbrella, earphones, one tube of painkillers, wet wipes, a wallet. The man opened the wallet, looked down for a moment at the neat bills, and closed it again without a sound.

"What good is counting that."

"Because this is all of it." The man laid out again in one row what he had taken out. As if doing so might make it grow. "Until someone comes looking — this is all we have."

The woman did not answer. She was looking at the dark beyond the campfire. Above the ridgeline there were too many stars. Stars beyond counting, unlike the sky she had watched through the bus window. And nowhere among them was the blinking light of an airplane.

"...Listen." The woman said low. "It's been strange for a while now. There are no transmission towers."

The counting hand stopped.

"The whole way down the pass I never saw one. No transmission towers, no power lines, no village lights." The woman drew her knees in. "Where did the bus go, I wonder."

The man looked down at the one row on his jacket. One water bottle, two chocolates, three bars of battery. Until just now, it had been the inventory of what they had until the rescue party came. Now — what it was the inventory of until, he could not tell.

On a far mountain something neither dog nor wolf howled long. The man began to put the things back into the backpack. Far more slowly than before.

#What This Book Does

#The Axis of Eras, the Last Piece

Three eras are already shelved on the bookshelf of Konsei Reiyotan. Heian Yawa handles the elegant terror of Heian, the core co and Sengoku Fudoki handle the day and night of the Sengoku, and Strange Tales of Edo handles the concealed incidents of Edo. This volume is the last piece of that axis — but not in the manner of adding a fourth stage. This volume does not add an era; it adds a person who crossed eras wrongly. The stage is still the Sengoku. Only, upon that stage stands one who has come from the modern age — the age of the smartphone, the era of origin is fixed to this one alone.

The canon has already paved the road. According to the canon timeline, the things that drift back against time, the Spirit-Realm Wandering Treasures, have been touching this world since ten years ago. The goods came first. Now the person comes. This volume is the direct successor of that canon sentence.

The people of this era call one who has crossed over so the Kamikakushi. What the spirits hid away was not only people — they hid the road home along with them. This title is used as the standard throughout this volume. Abbreviated, "Kamikakushi."

#Two Pillars

The whole content of this volume stands upon two questions.

Pillar	Question	Where It Is Handled
Identity Set	who he was	the Set Overview and the six sets of the 02 series — the origin package laid on top of the modern person class
Depletion resource	what he brought	the Depletion System and the 03 series — the cards of the goods that came out of the backpack

Was he a Self-Defense Officer, was he a nurse, was he a university student in the very back seat of a night bus — the first pillar lays that past on top of the class. And the things laid out in one row on the jacket — the second pillar attaches an end to each one of them. The starting drifted goods are one backpack in principle — only what can be carried across on the body; beyond that is the domain of the Set Overview and the GM. Here is the reason that very inventory of the opening fragment is the character sheet itself.

So the spine of this volume is this one sentence.

This book is not a book that makes the modern person strong. It is a book that gives the drama of a future being consumed.

The more the magazine empties, the more the battery sleeps, the more the Kamikakushi becomes a person of this era. The growth curve of this volume is not ascent but naturalization (歸化) — its frame has already been set up by the Depletion System.

#What This Book Does Not Do

Four things are nailed down in advance.

It does not make the modern person a combat class. The frame of the canonical modern person — non-combat support, Energy Transfer, Adaptation — is the default as it is. Even the Self-Defense Officer set, the closest to combat, returns to the canonical non-combat identity once the ammunition falls silent. The set is not a "strong modern person" but a "modern person not yet worn all the way down."

It does not open a sustained gate. The structure in which a gate is kept open, supplies go back and forth, and the home country's orders arrive — the so-called "sustained gate" type — is excluded from the basis of this volume. A Kamikakushi with a supply line is not a Kamikakushi but an expeditionary force, and at that instant the drama of Depletion ends. Still, for the table that wants that road, it has been left as only a single line of option, together with a warning, on the "slow" of the Depletion dial in the GM Guide.

It does not settle modern technology in this era. Neither the mass production of medicines nor the improvement of the teppo is the story this volume means to give. The knowledge is there, but the materials and precision and infrastructure are not — that is the basic premise of this book. How far era contamination is permitted and how it is stopped, together with the means of control, only the GM Guide handles. The anxiety itself of "what if I change history" is laid out by the Principles of Drift, together with the canon's answer.

It does not override the core. fc cannot override the co Canon. Every variant rule of this volume is premised on GM permission, and this declaration is nailed down once more in a table below.

#Authority Guide

This volume mixes four authorities within one book. The authority of each document's frontmatter is the final standard.

Authority	Scope of Application	Example Within This Volume
Variant	variant rules — all premised on GM permission	the Depletion System, the rule portion of the 02-series sets
narrow Canon	the numbers of new props — canon only within this volume	the numbers of the 03-series data cards
Scene Tool	operational advice — not a rule but a knob in the GM's hand	the GM Guide, the Depletion operation dial
Fiction-Only	fragments and commentary — no numbers	this document, the Scent of each document

Reaffirming the fc absolute rule — the new data of this volume is canon only within this volume. This volume cannot overwrite the co Canon, and when other fc or ex draw on this volume, they treat it as optional material.

#Division of Labor with Existing Documents

This volume is not a book built on empty land. Five documents were there first, and this volume stands only in the empty seats between them.

Document That Was There First	What That Side Does	What This Volume Does
modern person	the class body. The canonical frame of non-combat support, Energy Transfer, and the Three Ways and Six Hearts drama	does not cover but lays on top — the origin package above it is the 02 series
Expansion Class Guide	the original source of the outsider common rules — Adaptation (適應) starts here and is defined by the canonical Progression system	uses Adaptation as a premise but does not redefine it
3 Outsider Classes Alternate Techniques	modern-person alternate techniques — optional material	whether and in what order it may be used together with this volume's sets is laid out by the Set Overview
Modern Yoma	yoma into the modern age — a campaign that takes the modern age as "background"	the direction is reversed. The modern "person" into the Sengoku — passing the same gate from the opposite side
Spirit-Realm Wandering Treasures	the canonical original source of things that drift away from time	upon it lays the drifted relics — the relic-becoming of things that crossed over together with people

To add a sister volume. The journey-incident table of Shokoku Kenbunroku (fc09) has a column for an artifact of unknown origin washed up on the waterside — if you have grown curious where that artifact came from, the answer is in this book's drifted relics.

#How to Read

Reading the whole volume through is the GM's road. The PL can come in far more lightly.

If you are a PL. Skim the Set Overview and read the one piece of your own set (the 02 series). Then, from the 03 series, find and read only the cards of what is in your backpack, and your preparation is done. There is no need to read the catalog through — your future is one backpack's worth anyway.
If you are a GM. The two pieces of 01 are required reading. The Principles of Drift settle "how they come," and the Depletion System settles "how it ends." On top of that, choose the speed of the campaign with the GM Guide. The summary tables and the remaining-count sheet of the Quick Reference are kept on the table.

This volume deliberately avoided the road of growing thick with the rules of a new dimension. What is needed is only [Depletion] alone and the grammar of the canon — that this is enough is the answer of the two required documents above.

The story of the Kamikakushi begins with arrival and ends with naturalization. What is laid out in between is a future one backpack's worth.