Katsuragikiri Nagamasa in Genshin Impact has a specific permanent route, so you do not need to wait for a limited event or banner. The claymore diagram is inside Tatarasuna’s Arsenal, opened with three Keys to Some Place. For Katsuragikiri Nagamasa, this guide covers the prerequisite, the practical route and the checks that matter if the expected interaction is still missing.
The important part is that this is progression-gated content, so reaching the map marker is only half the job for Katsuragikiri Nagamasa. For Katsuragikiri Nagamasa in Genshin Impact, check the quest log and Quest Items tab before travelling, because one missing flag or item can make the correct location look completely inactive.
Katsuragikiri Nagamasa in Genshin Impact requirements

Image credit: HoYoverse
Before working on Katsuragikiri Nagamasa in Genshin Impact, clear the requirements below. For Katsuragikiri Nagamasa, these are the parts most likely to explain why the expected NPC, door, puzzle, boss or item has not appeared yet.
- Reach the Mikage Furnace area.
- Collect all three Keys to Some Place.
How to complete the route
The safest way to handle Katsuragikiri Nagamasa in Genshin Impact is to complete the local steps in order. Around Katsuragikiri Nagamasa, Genshin can let you physically reach the right area before the required interaction is enabled, so skipping ahead may make an intended progression gate look like a bug.
- Find the three key chests around Tatarasuna.
- Locate the locked Arsenal gate.
- Use all three keys.
- Open the Luxurious Chest and learn the diagram.
Keep the active objective tracked while moving through Katsuragikiri Nagamasa. If the Katsuragikiri Nagamasa marker shifts underground or onto another map layer, follow the intended cave, ruin or quest entrance instead of dropping directly onto the icon from the surface. That distinction matters for Katsuragikiri Nagamasa because stacked exploration layers can place two objectives at almost the same horizontal map position.
Important details that are easy to miss
There are a few details around Katsuragikiri Nagamasa in Genshin Impact that save time once you know them. For Katsuragikiri Nagamasa, they also help separate intended progression from a genuine technical problem.
- Each key comes from a one-time Common Chest.
- The Arsenal also contains additional exploration rewards.
Because Katsuragikiri Nagamasa is permanent content, there is no expiry date to race. The practical reason to finish Katsuragikiri Nagamasa is access: its progression flag can also control nearby rooms, quests, systems or one-time exploration rewards, removing later blockers in the surrounding chain.
Why Katsuragikiri Nagamasa in Genshin Impact may not be working
If Katsuragikiri Nagamasa in Genshin Impact still looks locked after reaching the correct place, work through these checks before restarting the game or assuming the objective is broken.
- If the gate stays locked, one key is missing.
- Check different elevations around Mikage Furnace.
For Katsuragikiri Nagamasa, also check whether the game expects a particular world state, daily reset, gadget, elemental interaction, map layer or previously completed subquest. For Katsuragikiri Nagamasa, those checks are legitimate progression gates and the map may not surface the dependency clearly. A restart can refresh the Katsuragikiri Nagamasa interface state, but it cannot replace the unfinished prerequisite that controls this route.
What to do after finishing it
After Katsuragikiri Nagamasa in Genshin Impact is complete, check the immediate area before teleporting away. The chain around Katsuragikiri Nagamasa can place its next chest, follow-up NPC, blueprint, waypoint or achievement interaction only a few steps from the final objective.
- The blueprint remains at every blacksmith once learned.
Common questions
Is Katsuragikiri Nagamasa in Genshin Impact permanent?
Yes. Katsuragikiri Nagamasa is part of permanent game content rather than a temporary event, so you can return later. Completing the Katsuragikiri Nagamasa prerequisite earlier can still make the surrounding exploration and follow-up quests easier to manage.
Why can’t I see the Katsuragikiri Nagamasa objective?
For Katsuragikiri Nagamasa in Genshin Impact, the most common explanation is an unfinished prerequisite, wrong state, missing quest item or nearby mechanism that has not registered. Compare your current Katsuragikiri Nagamasa quest stage with the requirement list above before searching for a second location.
Can I come back later?
Yes. The permanent objective tied to Katsuragikiri Nagamasa remains available after you leave the region. If the Katsuragikiri Nagamasa route uses a real daily reset, changing the in-game clock does not substitute for the server reset unless a step explicitly asks for in-game time.
Once you have finished Katsuragikiri Nagamasa in Genshin Impact, nearby shortcuts and follow-up objectives are worth checking while the route is fresh. That keeps the route efficient and avoids repeating a long underground or island approach later around Katsuragikiri Nagamasa. For official notices or future changes that could affect Katsuragikiri Nagamasa, use the official Genshin Impact website after completing the permanent steps above.
