To be able to access the area around the Arsenal, part of Tatara Tales must be completed so that the Mikage Furnace area can be unlocked; before then, the Containment Field will prevent players from entering. The Arsenal itself can be entered after obtaining 3 Keys to Some Place that are found around Tatarasuna in Common Chests. Upon first entering the Arsenal, three Ruin Sentinels will spawn.
In the Arsenal, there is a Luxurious Chest that contains 30 Primogems, 30,000 Mora, 3 Hero's Wit and Diagram: Katsuragikiri Nagamasa, which is used to unlock the forging recipe for the Katsuragikiri Nagamasa. Obtaining the diagram grants a Wonders of the World achievement "Blade of Tatara."
Several years after the cataclysm 500 years ago, Mikoshi Nagamasa became an Inspector for the Inazuma Shogunate and spent his time at Tatarasuna. He developed an interest in bladesmithing there and eventually forged the Daitatara Nagamasa with the help of Armory Officer Miyazaki. After it was forged, his group celebrated the accomplishment; Nozomu made a painting of it, while Katsuragi and the "nameless eccentric," now known as Scaramouche, performed a sword dance.
However, a certain incident shortly afterwards broke up the group. Mikoshi Nagamasa had flown into a rage after Katsuragi committed some "malefesance." He slashed Katsuragi with the Daitatara Nagamasa — thereby earning it the name "Katsuragikiri Nagamasa" (Katsuragi-Slashing Nagamasa) — and then threw the blade into the furnace. Nozomu salvaged the blade, but in doing so suffered fatal burn wounds. Miyazaki and Kinjiro both believed that Nagamasa could no longer be reasoned with, and so Kinjiro hid the remains of the blade and Nozomu's painting of it in the Arsenal.
|Language||Official Name||Literal Meaning|
|Russian||Оружейная комната / Арсенал |
Oruzheynaya komnata / Arsenal
|German||Waffenlager / Arsenal||Arsenal|
|Portuguese||Armazém / Arsenal ||Arsenal|
- Interactible: Rather Aged Notes
- Prompt at the Arsenal Gate: "Use the above items to Open Arsenal Gate"