The Hanako Military Museum is a museum that hosts the private Militaria collection of Hanako. It contains items such as ship patches, rank pins, hats, and guns, which were used in the Star Army of Yamatai and other forces. It is located in Ketsurui no Iori, Yamatai (Planet).

Hanako started her current collection in YE 31 using personal artifacts and items recovered from personnel leaving for the United Outer Colonies. The collection was displayed aboard the Second Squadron Starbase until being moved to Hanako's Palace in YE 34. In YE 37, it was moved to a new location in the Shinjuku Market District where it could be viewed by the public.

The contents of the museum were evacuated aboard the YSS Eucharis and YSS Wicked in YE 41 when Hanako's World fell to the Kuvexian forces during the Kuvexian Invasion of YE 41.

After 2 years in storage, the museum finally reopened in late YE 43 in a new location in Ketsurui no Iori, Yamatai (Planet).

Hanako Military Musuem has the following items on display:

As of YE 38, the Hanako Military Museum began adding static displays of starships and other aerospace craft to its collection.

• GSS Black Widow (GF-03) - Fuushigi no Umi-class Escort
• YSS Wicked (YD-232) - Yui-class Scout formerly captained by Ketsurui Yui

• Elysian Celestial Navy uniform (Veritas)
• Lorath M37/38 Environmental Battledress Uniform
• Star Army of Nepleslia uniform
• NMX Type 31 Field Uniform
• NMX Officer Uniform (Type 31)
• Peacekeeper Uniform (from Mitsuya System)
• NMX Type 33 Snow Gear (captured at Ether)

• Various NMX caps recovered after the Battle of Yamatai
• Star Army of Nepleslia Beret (obtained via Second Chance Salvage Company giveaway, Halloween YE 35)
• Various Star Army caps

• YSS Aeon patch, old version (donated by Ise Katae)
• YSS Aeon patch, YE 33 version (purchased in Kyoto)
• YSS Akigumo patch (formerly on Kotonoha Miyako's uniform)
• YSS Akuro patch
• YSS Asamoya patch (formerly on Yuriko Towa's uniform)
• YSS Densetsu patch (purchased in Kyoto)
• YSS Eucharis patch
• YSS Heitan patch (purchased)
• YSS Miharu patch (purchased in Kyoto)
• YSS Mikomi patch (donated by Rufus Sydney)
• YSS Sakura patch (Hanako's)
• YSS Senbu patch
• YSS Yugumo patch (formerly on Xanatos Zarthe's uniform)
• YSS Yukika patch
• Hotaru Star Fortress patch (purchased in YE 34)
• Star Army Infantry patch
• Star Army Intelligence patch
• Toushi Starfighter Squadron (7SF-01) patch (purchased in YE 34)
• GSS Kyuubi patch
• Uesureyan Fortress patch

• Mitsuya Ember's Chujo rank pin
• Hanako's Taisa rank pin (formerly worn by Ketsurui Yui)
• Wasuremono Koharu's Shoi rank pin
• Yuriko Towa's Taii rank pin
• Rare Sergeant Major 4th Fleet Rank Pin (Yamazaki Eve (山﨑))
• Luca Pavone's Soldier First Class (Nitô Hei) rank pin (gifted to Hanako at the end of YE 34)

• Hanako's Diamond Survival Knife
• Atromos Particle Beam Rifle with Dresde Under-Slung Grenade Launcher (from Veritas)
• Ingtris Flamethrower (from Veritas)
• Pestris Pistol
• Pelphrys Particle Pulse Autocannon
• Nekovalkyrja Service Pistol, Type 27
• Hanako's Type 28A Nekovalkyrja Service Pistol, Gold Edition w/ 2 extra mags, Serial number 001
• Type 28C Nekovalkyrja Service Pistol, Serial number 001, designed by Hanako
• Type 33X Nekovalkyrja Service Pistol, Gold with red grip, gifted to Hanako by Kage Yaichiro
• Hand Cannon, donated by Lime in YE 38,

• 2 Priceless Lorath religious icons
  • One of the icons is a large drum, two meters wide at the top, one meter in height, decorated with woven lengths of silver with diamonds, rubies, sapphires, and emeralds in succession along the hoop which holds the drum-head. The silver wire components are used to hold together blackened lengths of wood which make up the drum shell. The drum-head itself would likely be an aged leather, very robust and plush to the touch. Sound would be comparable to a bass drum mixed with a taiko drum.
  • The other is an ancient urn made of deep red marble and encrusted with gold and mother-of-pearl decor. It contains 300-year-old Lorath wine and is inscribed with the name of a popular princess of that era.
• Polished Marble Statuette
• An Ivory Amphora inlaid with Platinum