Lamplighter Isamu

Reach the hall and find Isamu

Head for the pronounced lamp building shown on the map in EXtraCALIBUR's route, then enter its main room. Isamu stands beside the light-pattern floor and has a Chat prompt.

Use the building and NPC name as landmarks. The recording does not provide stable coordinates that would be useful from every spawn point.

Start the light sequence

The creator says the challenge has five patterns. Their character had already completed it, so this footage shows the room and explains the method without demonstrating an untouched account's full completion screen.

1. Chat with Lamplighter Isamu to begin or continue the challenge.
2. Watch the floor tiles illuminate and remember the sequence.
3. Step on or activate the corresponding tiles in that order, then wait for the next displayed pattern.

Verify the Firstlight Lantern result

After the final pattern, check Isamu's conversation and Inventory for the schematic result. A schematic is a pattern for later crafting at a blacksmith; it is not the completed lantern itself.

If the puzzle does not advance, check that you spoke to Isamu and repeat the displayed order from the start of the current pattern. Avoid guessing a fixed sequence from another player's run.