Nurikabe 塗り壁

Medium fey (yokai), neutral

Armor Class 20 (supernatural resilience)

Hit Points — (see Immutable Barrier)

Speed 0 ft.

INT 6 (−2) · WIS 10 (+0) · CHA 8 (−1)

Damage Immunities all damage

Condition Immunities all conditions Senses blindsight: 60 ft. (blind beyond this radius), passive Perception 10

Senses blindsight 60 ft. (blind beyond this radius), passive Perception 10

Languages Yokai Speech, understands Common (or local dialects) but never speaks

Challenge —

Traits

Invisible Obstruction. Nurikabe is usually completely invisible, though it can also appear as part of a ruin or wall in dim light. A creature adjacent to Nurikabe can use its action to feel around for the edges of the barrier with a successful DC 12 Intelligence (Investigation) or Wisdom (Perception) check. Even on a success, the character only discerns the approximate shape and boundary of the barrier.

Immutable Barrier. Nurikabe cannot be moved, damaged, or destroyed by any conventional means (including dispel magic or attempts to sunder the “wall”). If the GM allows it, powerful epic-level spells (like wish) might disperse it—but typically, Nurikabe simply chooses to vanish if suitably tricked or persuaded.

Endless Extension. Whenever a creature attempts to bypass Nurikabe by walking around or climbing over what appears to be its boundary, Nurikabe instantly extends its barrier, preventing passage in that direction. This effectively makes it impossible to go around or over unless Nurikabe ceases.

Trick to Pass. Local lore suggests a folk remedy: “Tap or wave a stick near the base of the wall at ground level, or appear completely unhurried and indifferent.” Some tales claim a DC 15 Charisma (Performance) check—mimicking total apathy—convinces Nurikabe to “relax” its barrier. Others say you must specifically “sweep” the base with a hand or tool. In any case, if a creature performs the correct action (up to GM discretion), Nurikabe vanishes or moves aside, letting travelers pass.

Mischievous But Harmless. Nurikabe never deals damage on its own. It has no attacks and does not deliberately cause harm beyond blocking paths and wasting travelers’ time. However, travelers might injure themselves by colliding with it at speed, stumbling into nearby hazards, or running out of supplies while delayed.

Behavior & Lore

Nurikabe often appears on empty roads at night, halting a lone traveler or caravan. At dawn—or whenever it loses interest—it simply vanishes.

It does not respond to threats or pleas. Attempting to break it only serves to tire would-be attackers.

Sometimes it masquerades as part of a wrecked building in abandoned areas, blending seamlessly with actual walls.

Lore

Invisible spirit blocking travelers, causing confusion and unexpected detours.

Nurikabe is a yokai from coastal regions said to appear suddenly on dark roads in the form of a wall that blocks one’s passage. Once Nurikabe rises before you, attempts to skirt around it—whether to the left or right—prove futile, for it simply shifts to deny you any route forward. Striking it reveals a surface as hard as stone in some accounts, though others describe it as curiously soft.

One folk tale recounts a young traveler who lost his way in the forest and found himself surrounded by a wall with a strangely soft texture. Rather than risk forcing his way past it, he chose to sleep. At dawn, the wall was gone, and he discovered he had stopped mere steps from a precipice. Had he pressed on, he would have fallen to his death.

From Yokai Bestiary 5E, p. 74 · Fern Flower Press