#Ruin Exploration Guide — Reading the Collapsed Promise

Contents

Scene Tool. This mode uses the same Kageyama Castle for a fourth time by changing only its state from "active castle" to "ruins." If siege, defense, and Infiltration deal with people, ruins are the mode for reading collapsed promises and orders left behind. Every ruling follows 02-01 and 02-02, and does not create new yoma data — yoma are delegated to fc08 (or, if absent, handled self-contained with co gimmicks + GM discretion), and the ruin d100 tables are delegated to 06-02.

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#Scent — A Castle That Has Not Heard It Is Over

Grass seed runs down where the otemon collapsed.

There is no castle gate. Only the place remains. A suit of armor stands in the corridor wrapped in grass, and every night — the sound of a gate that no longer exists closing can be heard. The war is over, but this castle has not yet heard those words. Ruins are not a battle stage. They are a space that has not yet heard that it is over.

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#Mode Overview — What Remains After Collapse?

Central question: what remains after Kageyama Castle has collapsed?

What the exploration side is trying to win is not killing enemies — it is (1) recovering what remains, (2) revealing what prevents this place from leaving, and (3) getting out alive.

The same structure changes only its state:

Do not create a new stage — overlay "ruin state" on the basic setup of 07-01 Kageyama Castle.

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#Scene Bundle — Six Scenes

Each scene = one small map (3~7 zones). Choose only 3~4 for a session (do not make it a dungeon crawl).

1. approach — crossing the collapsed wall. Enter by bypassing, climbing, or digging through earthwork-collapse rubble and a blocked otemon. (02-02 wall, earthwork, stonework ruins hook.)
2. search — abandoned masterworks and arms. Search storehouses, living rooms, and armories for recoverables (linked to the 06-02 find table).
3. blocked gate — opening a sealed zone. Resolve a passage blocked by earth, stone, Barrier, or yoma — not a fight, but revealing "why it was closed."
4. earthbound spirit — what could not leave. Encounter with a spirit repeating its final order (delegated to fc08).
5. yoma-tainted storehouse — altered stored things. A storage place inhabited by tsukumogami or armor yoma (delegated to fc08).
6. forgotten passage — rediscovering a secret road. Ruins hook from the 02-02 secret passage card (escape, trap, survivor hideout).

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#Zone and Check Connections — co Gimmicks and 36 Skills

Follow the 02-01 conversion procedure. Ruins only reinterpret scene functions and scene pressure from the conversion procedure; they do not create a new procedure. The following is an index (no new gimmicks or skills).

Number Guard. Target Numbers are usually odd, and fixed combat values (Blockade and Defense) use the numbers from 02-02 and co as written. Time = rounds, durability = Wounds (recovery is "Wounds recovery"). Do not establish a separate numerical system for ruins. Ranged action is Archery (bows and teppo; no separate gun skill). The sealed innermost area (shadow gate below the shrine) is treated as a Core Zone, but during undiscovered exploration its combat rules are dormant.

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#Discovery and Seal Procedure

This procedure inserts the d100 from the 06-02 ruin tables into scenes (the table bodies are in 06-02). This section defines only when to roll which table:

• event d100 — 1 time on zone entry or each lull (show that the ruins are alive).
• find d100 — when a recovery action succeeds in a "search" scene (what remains).
• The two tables are a scene progression device that inserts d100 into ruins, just as the 04-02 holdout clock inserts d100 into defense (this volume has only two d100 devices, holdout and ruins — minimal probability-table principle).

Three results of unsealing:

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#Table Hooks — For the GM

Theme. Recovery, repose, resealing, survivor rescue. Ruins are less a story of "what did you come to take" than "what will you leave behind."

Scenario Hooks:

• Masterwork recovery — they came to find a masterwork sleeping in a collapsed armory. But it may already be yoma-tainted.
• Repose — the castle lord's earthbound spirit repeats the final order ("close the castle gate") every night. Will that order be ended?
• Resealing — the broken seal confirmed in Infiltration mode (05-01 foreshadowing). Now they have come to cover it again.
• Survivor rescue — someone alive is hiding somewhere in the ruined castle. The hideout in a forgotten passage.
• fc08 faction motives — Kagura Domain sees the same castle site as a military objective, Hieiren as a repose target, Enryokan as a research target, and Kunitomoza as a recovery target (fc08).

Mode Shift on Failure:

Ruins are not a dead end — even from a collapsed castle, the other three modes rebound.

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"A ruin is not an ending, but a castle that has not yet heard that it is over — explorers go to tell that castle it is over now."