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Locationmajor

sisustoM Lightroot

Sisustom Lightroot is a Depths location beneath the South Lomei Labyrinth in the Gerudo Highlands region of The Legend of Zelda: Tears of the Kingdom.

Importancemajor

Key takeaways

  • Sisustom Lightroot is on top of the South Lomei Depths Labyrinth, not in its maze corridors.
  • It illuminates the surrounding Depths, reveals nearby map data and becomes a Travel Point when activated.
  • The easiest route is through South Lomei Chasm, followed by using Ascend inside or near the underground labyrinth.
  • It corresponds to Motsusis Shrine on the surface, but its position does not follow the usual direct-under-shrine alignment.
  • Clearing the South Lomei Depths Labyrinth is optional for activating the Lightroot.
  • The major combat challenge associated with the wider area is a Flux Construct III, encountered in the labyrinth’s inner sanctum rather than at the Lightroot itself.

About this guide

This guide covers the base game of The Legend of Zelda: Tears of the Kingdom. Major spoilers: The guide discusses the South Lomei Prophecy, the Flux Construct III encounter and the reward for completing the South Lomei labyrinth sequence.

Overview

Sisustom Lightroot is a Depths location beneath the South Lomei Labyrinth in the Gerudo Highlands region of The Legend of Zelda: Tears of the Kingdom. It stands on the roof of the South Lomei Depths Labyrinth, rather than inside the labyrinth itself, and serves as both a map-uncovering landmark and a fast-travel point. Its corresponding surface Shrine of Light is Motsusis Shrine, although Sisustom Lightroot is one of the unusual Depths labyrinth Lightroots that is not directly below its matching shrine.

The Lightroot is closely associated with the South Lomei Prophecy side quest. Reaching it is normally one of the first useful steps after entering the South Lomei Depths Labyrinth, but activating Sisustom Lightroot is not required to enter or clear the labyrinth. The Lightroot itself is also separate from the Flux Construct III encounter and from the reward sequence in the labyrinth’s inner sanctum.

Location and boundaries

Sisustom Lightroot

The Lightroot sits on the upper surface of the underground labyrinth structure. Its immediate function is the same as that of other Lightroots:

Sisustom Lightroot is not a settlement, dungeon, shop or conventional interior. It is best understood as a navigation facility positioned above a larger underground puzzle-combat area.

South Lomei Depths Labyrinth

The South Lomei Depths Labyrinth is the principal surrounding subarea. It corresponds vertically and thematically with the South Lomei Labyrinth on the Surface, but the two are separate map layers with different traversal challenges. The Depths structure contains maze passages, obstructed sections, Poes, Decayed Constructs and the inner-sanctum battle associated with the labyrinth sequence.

The labyrinth is the wider location in which Sisustom Lightroot is found. It should not be collapsed into the Lightroot itself when describing the area.

South Lomei Chasm

South Lomei Chasm is the principal entry connection into the Depths portion of the area. It is listed as an area of the South Lomei Depths Labyrinth and provides the natural route from the surface labyrinth to the underground structure.

Separate neighbouring locations

The following locations are related, but are not part of Sisustom Lightroot’s immediate scope:

The three Lomei labyrinth Depths Lightroots are exceptions to the usual rule that a Lightroot is directly beneath its surface Shrine counterpart. Sisustom Lightroot corresponds to Motsusis Shrine by the game’s Lightroot-Shrine naming and pairing system, but it is located on the labyrinth rather than directly underneath that shrine.

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How to reach Sisustom Lightroot

The important point is that the Lightroot is above the underground maze. Searching the lowest corridors for it can be misleading, since the correct approach is usually vertical rather than horizontal. The recommended guide route specifically advises finding an Ascend point after entering the Depths and using it to reach the labyrinth roof.

Useful preparation

The Lightroot itself is safe to activate, but the surrounding labyrinth contains enemy encounters and obstructed routes.

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Recommended route through South Lomei Chasm

  1. 01
    Travel to the South Lomei Labyrinth on the Surface.
  2. 02
    Enter the labyrinth and locate the route leading down to South Lomei Chasm.
  3. 03
    Drop into the chasm and deploy the Paraglider when safe.
  4. 04
    Throw or fire Brightbloom Seeds to create enough light for the first part of the descent.
  5. 05
    Once you reach the Depths, look for a suitable ceiling beneath or beside the underground labyrinth.
  6. 06
    Use Ascend to pass through the ceiling and emerge on top of the maze structure.
  7. 07
    Activate Sisustom Lightroot.
  8. 08
    From the Lightroot, either return to the labyrinth interior or use the newly created Travel Point to leave and resume the exploration later.

Features and services

Lightroot activation

Interacting with Sisustom Lightroot activates its glow and illuminates the nearby Depths. This is especially valuable in the South Lomei area because the labyrinth’s walls and enclosed passages can make visual orientation difficult even after the immediate surroundings have been partially explored.

Activation also records the location on the Depths map and makes it available as a fast-travel destination. Lightroots are therefore both exploration rewards and practical checkpoints.

Gloom recovery

Link can stand beneath the active Lightroot to reverse the effects of Gloom on his maximum health. This does not function as a general healing service in the same way as a bed or healing meal, but it restores heart containers lost specifically to Gloom exposure.

Map revelation

Sisustom Lightroot reveals the surrounding Depths terrain on the Purah Pad. Its position can also help establish the relationship between the underground labyrinth and the surface maze. If the map appears to show the Lightroot in an unexpected position relative to Motsusis Shrine, this is not necessarily an error: the South Lomei, North Lomei and Lomei labyrinth Lightroots are recognised exceptions to the standard surface alignment.

Directory: facilities

There is no verified shop, inn, stable, forge, cooking facility or ordinary settlement at Sisustom Lightroot.

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South Lomei Depths Labyrinth

The underground labyrinth is the main reason to explore beyond the Lightroot. Its passages contain scattered Poes, Decayed Constructs and blocked or shuttered sections. These features make it more than a simple route to the Lightroot: it is a distinct exploration and combat area with its own progression.

Enemies and hazards

Verified enemy and hazard entries for the wider underground labyrinth include:

The available sources do not establish that every passage contains the same enemy layout on every visit, so the safest description is that these are documented inhabitants or obstacles of the area, not a claim that every listed enemy appears at a fixed point.

Flux Construct III

The Flux Construct III is not stationed beside Sisustom Lightroot. It is found deeper in the labyrinth’s inner sanctum and is associated with completing the South Lomei labyrinth sequence. The battle involves targeting the Construct’s vulnerable core while dealing with its changing configurations and large-area attacks.

The major quest reward for the South Lomei sequence is the Evil Spirit Mask, awarded after the relevant labyrinth challenge is completed. The reward is tied to the wider quest progression, not to activating Sisustom Lightroot alone.

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Flux Construct III: A practical approach is

  1. 01
    Activate Sisustom Lightroot first.
  2. 02
    Use the illuminated map and fast travel point to establish a safe return route.
  3. 03
    Explore the labyrinth until you reach the inner sanctum.
  4. 04
    Prepare for the Flux Construct III encounter before entering the arena.
  5. 05
    Target the glowing core with melee attacks, arrows or abilities that let Link reach it during the Construct’s different forms.
  6. 06
    Collect the dropped materials after victory and continue into the reward sequence.

South Lomei Prophecy and progression

Sisustom Lightroot is closely connected with the South Lomei Prophecy side quest. During this activity, the player visits the South Lomei labyrinth complex, descends into the Depths and eventually confronts the Flux Construct III.

The progression should be understood as three linked but distinct steps:

Activating Sisustom Lightroot is not itself the completion condition for the labyrinth. Conversely, the sources indicate that clearing the South Lomei Depths Labyrinth is not required merely to activate the Lightroot. This distinction matters if you want to illuminate the area early and return later for the combat challenge.

Directory: named progression and quest entries

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South Lomei Prophecy and progression

Progression elementWhat it does
Reach South Lomei LabyrinthGives access to the surface labyrinth and its chasm
Activate Sisustom LightrootIlluminates the underground area and creates a Travel Point
Clear the Depths labyrinth challengeLeads towards the Flux Construct III and the quest reward

Suggested exploration route

For a safe and efficient visit, use this order:

This route separates the navigation objective from the combat objective. It also prevents a player from losing progress in the dark labyrinth after reaching the area for the first time.

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Suggested exploration route: steps

  1. 01
    Explore the surface labyrinth first, if you have not already done so.
  2. 02
    Locate South Lomei Chasm and mark the entrance if you expect to return.
  3. 03
    Drop into the Depths with Brightblooms ready.
  4. 04
    Search upward for an Ascend point, rather than trying to navigate every dark passage immediately.
  5. 05
    Activate Sisustom Lightroot as soon as possible.
  6. 06
    Use the Lightroot’s illumination to inspect the map and plan the route into the underground labyrinth.
  7. 07
    Return to the maze interior and investigate the passages containing Poes, Decayed Constructs and blocked sections.
  8. 08
    Restock and prepare before the inner sanctum.
  9. 09
    Defeat Flux Construct III if you are pursuing the South Lomei Prophecy.
  10. 10
    Collect the quest reward and use the Lightroot as the return point for further Depths travel.

Collectibles and rewards

Fixed rewards

The principal fixed rewards and benefits associated with this location are:

Poes

Poes are documented in small groups throughout the South Lomei Depths Labyrinth. Their exact placements should be checked while exploring the maze rather than assumed to be part of the Lightroot’s immediate platform. They are collectible Depths spirits, not residents of Sisustom Lightroot.

Enemy drops

The Flux Construct III and other Constructs can provide materials for Zonai-related upgrades and combat fusions. The sources consulted here confirm the presence of the boss and Decayed Constructs, but do not provide a complete fixed inventory of every drop or every chest in the surrounding maze. Those entries should therefore be recorded separately from the Lightroot directory rather than presented as a complete local item list.

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Lore and trivia

Sisustom Lightroot follows the naming relationship used between Lightroots and Shrines of Light. Its name corresponds to Motsusis Shrine when reversed, although the in-game relationship is not a direct vertical alignment in this case. The three labyrinth Lightroots are notable exceptions to the broader pattern used throughout the Depths.

The location also illustrates the layered design of the Lomei labyrinths. The player can encounter related structures across the Surface, Sky and Depths, with each layer serving a different function. Sisustom Lightroot is the Depths layer’s navigation anchor, while the underground labyrinth supplies the combat and quest challenge.

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Practical checklist

Before leaving the area, check that you have:

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Sources