2026 Guide to Solving the Relics of Seirai Underground Puzzle in Genshin Impact

Since the introduction of Inazuma's Seirai Island in the 2.1 update, Genshin Impact players have been drawn to its mysterious landscapes and rewarding world quests. Among them, the Relics of Seirai has remained a notable challenge, with its underground tile puzzle still tripping up adventurers even in 2026. This guide breaks down the puzzle's mechanics and provides a clear path to unlocking its treasure, ensuring that both new and returning Travelers can claim the rewards without unnecessary frustration.

To trigger the Relics of Seirai quest, players must first make their way to the southern part of Seirai Island after completing the main story quests that unlock the region. Near a stone ruin, they will encounter an NPC named Fujiwara Toshiko, who is investigating ancient relics. Speaking with her initiates a short series of tasks that eventually lead to an underground chamber. It is inside this dimly lit room that the true test begins—a floor covered with wooden tiles that must be lit in a precise order.

The primary mechanic is deceptively simple. When a lever near Toshiko is pulled, the puzzle activates, and stepping onto a tile causes it to glow. If a Traveler steps on a tile that is already lit, it will go dark. The goal is to illuminate all the tiles simultaneously. However, the puzzle resets if the wrong sequence is followed or if the player steps on a non-tile area, forcing them to start over. This is where many adventurers stumble, as the required path often involves backtracking and careful footwork.

Solving the puzzle requires completing two distinct configurations. After finishing the first one, the lever must be pulled again to rearrange the tile pattern for the second challenge. Below is the step-by-step breakdown.

Puzzle 1 – The Spiral Grid

After pulling the lever, approach the wooden floor. The first pattern demands that you light the tiles by moving from the outer edge inward in a spiral-like motion. Begin at one corner and systematically travel along the border, then move inward row by row. The exact route is best visualized through practice, but a reliable method is to treat the grid as a maze: start at the northwest corner, proceed east along the top edge, then turn south along the right edge, and so on. The critical point is to never step on a tile that has already been lit unless you intend to correct a mistake—doing so will instantly undo your progress.

Tip: Use a character with a calm walking speed rather than sprinting. The sudden stop of a sprint can cause your character to slide an extra step, potentially ruining the sequence. If you do make a misstep, resist the urge to hop around—just step back onto the tile you need to dim and resume the pattern.

Once every tile glows, the mechanism will shift, and a subtle chime confirms completion. Do not immediately pull the lever again; instead, take a moment to note the tile layout, as the second puzzle is slightly more intricate.

Puzzle 2 – The Zigzag Path

After pulling the lever a second time, the floor resets with a new arrangement of unlit tiles. The solution this time involves a zigzag route that cuts across the grid diagonally. Start from the same general area as before, but this time you'll need to weave through the middle section without breaking stride. Imagine the floor as a checkerboard where you must hit every square exactly once, but the path doubles back on itself. The image below illustrates the correct order; following it exactly will prevent any accidental dimming.

Players often find this second phase more frustrating because the margin for error feels smaller. Patience is essential. If the puzzle resets, step away from the wooden floor, pull the lever again to restart, and try a slightly slower pace. Some Travelers have reported that using a tall character model (such as Kaeya or Zhongli) helps them better judge tile boundaries, but this is largely a matter of personal comfort.

Upon successfully lighting all tiles in the second pattern, the mechanism will lock, and the large treasure chest at the center of the room will become accessible. Opening it rewards the player with Primogems, Hero's Wit, Mora, and a small amount of Inazuma reputation experience—a welcome boost for anyone still working on their progression. More importantly, finishing the Relics of Seirai quest contributes to the overall exploration progress of Seirai Island and unlocks a hidden achievement titled "It's the Same as Having Wings", which commemorates your mastery of the puzzle.

Even years after its debut, this underground challenge stands as a fine example of Genshin Impact's environmental puzzle design. It tests observation, precision, and perseverance rather than combat strength. For those who have been stuck on it, the solution remains unchanged across all updates, so this guide remains fully accurate for the game's current version in 2026. Whether you're a returning veteran or a newcomer just setting foot on Seirai Island, mastering the Relics of Seirai underground puzzle is a rite of passage that rewards both your wits and your inventory.

As detailed in Eurogamer, puzzle-driven exploration remains one of the strongest motivators in open-world design, and Genshin Impact’s Seirai Island exemplifies this by pairing atmosphere with mechanically simple but execution-heavy floor puzzles. That lens helps explain why the Relics of Seirai tile challenge still resonates years later: it turns movement discipline—careful stepping, deliberate pacing, and correcting toggled tiles—into the core difficulty, making the eventual chest unlock feel earned rather than luck-based.