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Mu is a character in Jade Cocoon: Story of the Tamamayu and Jade Cocoon 2. She is a Nagi Maiden, tasked by Ni, to provide services to Levant after arriving at the Temple of Kemuel. She presides over the Chamber of Goods on the right-hand side of the door, and caters for all Yan-based transactions from that point onwards. She is also Koris' niece.

Mu presides over the Battle Arena, bearing witness to victory and defeat. She provides colorful commentary on everything in the arena except for who wins and loses.


Mu has a large selection of items on offer; including every purchasable weapon from Yajako, a few mid-late game armor sets, and a selection of accessories. Her collection expands to every purchasable item in the game upon completion of the main story.

Netherworld Equipment[]

Upon arrival at the Temple of Kemuel, these items are available from Mu's Weapon section:

Name Price
Knife.png Knife 50 Yan
Knife.png Dagger 100 Yan
Sword.png Bronze Sword 500 Yan
Knife.png Sword of Speed 800 Yan
Long Sword.png Iron Sword 1000 Yan
Knife.png Little Bird 2000 Yan
Long Sword.png Blue Phantom 10000 Yan
Samurai Sword.png Spring Blossom 80000 Yan
Cloth.png Silver Vest 1200 Yan
Cloth.png Nagi Garb 10000 Yan
Cloth.png Navy Blue Garb 15000 Yan
Cloth.png Forest Garb 20000 Yan
Accessoire.png Leather Headband 100 Yan
Accessoire.png Iron Headband 500 Yan
Accessoire.png Silver Headband 1500 Yan
Accessoire.png Sparrow Ruff 500 Yan
Accessoire.png Iron Bracelet 500 Yan
Accessoire.png Silver Crown 500 Yan
Accessoire.png Holly Ruff 500 Yan

Eternal Corridor Equipment[]

After finishing the main story, these items are added to Mu's Weapon section:

Name Price
Spear.png Aquazor 400 Yan
Axe.png Iron Axe 1000 Yan
Sword.png Life Stealer 1500 Yan
Spear.png White Horn 1900 Yan
Spear.png Whistler 3100 Yan
Sword.png Nightglow 3500 Yan
Spear.png Thunderbolt 10000 Yan
Sword.png Tsunami 10000 Yan
Samurai Sword.png Icicle 999990 Yan
Cloth.png Hunter's Vest 50 Yan
Cloth.png Leather Vest 100 Yan
Cloth.png Chain Mail Vest 300 Yan
Cloth.png Wire Vest 500 Yan
Cloth.png Plate Mail Vest 600 Yan
Cloth.png Reflecting Vest 2000 Yan
Cloth.png Divine Vest 2000 Yan
Cloth.png Riketz' Garb 2000 Yan
Cloth.png Bloody Garb 100 Yan
Accessoire.png Blue Bead 400 Yan
Accessoire.png Green Bead 400 Yan
Accessoire.png Yellow Bead 400 Yan
Accessoire.png Red Bead 400 Yan
Accessoire.png Poison Choker 700 Yan
Accessoire.png Sleep Choker 700 Yan
Accessoire.png Stone Choker 700 Yan
Accessoire.png Super Choker 1000 Yan


Upon arrival at the Temple of Kemuel, these items are available from Mu's Supplies section:

Name Price
Item Mugwort.png Mugwort 15 Yan
Item Mugwort.png Meta-Mugwort 50 Yan
Item Mugwort.png Bitter Mugwort 500 Yan
Item Liquor.png Shab Liquor 50 Yan
Item Liquor.png Fine Liquor 100 Yan
Item Liquor.png Excellent Liquor 200 Yan
Item Tendai Uyaku.png Tendai Uyaku 1500 Yan
Item Powder.png Valerian Powder 10 Yan
Item Powder.png Ikari Powder 50 Yan
Item Ring.png Ring of Venom 70 Yan
Item Ring.png Ring of Sleep 100 Yan
Item Ring.png Ring of Stoning 300 Yan
Item Ring.png Ring of Death 500 Yan
Item Mirror.png Mirror of Deva 500 Yan
Item Pouch.png Urvy's Blessing 200 Yan
Item Pouch.png Vary's Blessing 200 Yan
Item Pouch.png Agni's Blessing 200 Yan
Item Pouch.png Malty's Blessing 200 Yan
Item Seal.png Urvy's Seal 1 200 Yan
Item Seal.png Urvy's Seal 2 300 Yan
Item Seal.png Vary's Seal 1 200 Yan
Item Seal.png Vary's Seal 2 300 Yan
Item Seal.png Agni's Seal 1 200 Yan
Item Seal.png Agni's Seal 2 300 Yan
Item Seal.png Malty's Seal 1 200 Yan
Item Seal.png Malty's Seal 2 300 Yan
Item Powder.png Sleep Spores 500 Yan

Battle Arena Quotes[]

Jade Cocoon: Story of the Tamamayu[]

Mu has a wide variety of things to say in the arena. All of her dialogue lines ignore the option for disabling speech while fighting there.

Quote Conditions
"It seems you are gauging each others moves." Both players' Minions are using Defend.
"Such overwhelming power! The minion has fallen with one fatal blow!" A Minion is KO'd from full HP, including death by Ad Mumuls.
"The minion is gravely wounded." A Minion is reduced to below 50% HP.
"It is breathing heavily, and could keel over at anytime." A Minion is reduced to below 10% HP.
"Is the fight over? It looks like that is it for this minion. It has fallen and cannot get up!" A Minion is KO'd as a result of two or more attacks.
"Poison! The minion looks dizzy." A Minion is poisoned.
"Oh no, it is falling asleep! This could be dangerous. It is like a helpless fish on a chopping block!" A Minion is put to sleep.
"The minion is being turned into stone! It is spreading fast. This could be fatal if it is not healed!" A Minion is afflicted with Flesh to Stone.
"A change of elemental properties! What an exciting move. What will happen now!?" A Deva-type spell is used.
"I cannot take my eyes off this thrilling battle!" Seemingly random, but happens roughly every 10 turns. The line will play twice if the minion being attacked is using Defend, and it is their turn next.
"Oh my, it dodged the blow! No damage taken." A move misses. This does not include All Enemies being used against Winged posture minions.
"The player has switched minions! A new minion has entered the arena!" A Minion is switched out.
"A direct hit! Oh, that had to hurt!" The attacking Minion scores a critical hit. (Note; Not the attack Critical, that remains untested.)
"What a close fight! Finally a decision has been reached. Well done!" A 3v3 fight is won with only one Minion left standing.
"Another loss! The fight has been decided before the third round. Too bad! I was even rooting for you!" A 3v3 fight is won in 3 turns.

Jade Cocoon 2[]

Mu once again provides commentary for the arena battles, except this time with more to-the-point lines, and slightly less chance of hearing one per action.

Lines with [???] in them are ones I am unsure of, as quite a bit of Mu's dialogue is hard to understand, and the Battle Arena has no subtitles in this game.

Quote Conditions
"This has been Mu - the ringside announcer!"
"The match has begun!"
Gameplay begins.
"They are looking serious!"
"Cheers are flying!"
"They are quite furious!"
"This is an unexpected turn..."
"I cannot look away!"
"They are moving well!"
"[???] We have some [...] battling... I'd like to do some myself!"
"Their movements are tight!"
"The tension is thick!"
"I was about to forget the play-by-play and cheer myself!"
"They are holding well!"
A round has started.
"This is a good turn."
"One step ahead - one back - what's next?!"
"This is a non-aggressive turner!"
"It's taken a fierce turn!"
A round has started. These lines pertain to the players styles of play.
"Skillful attack!"
"That's great!"
"It's a KO!"
A Divine Beast is KO'ed - including Instant Death.
"BeastHunter is undefended!" A Divine Beast in the centre position of a formation is KO'ed.
"Health is restored." A Divine Beast has used a HP drain attack (such as Yagiluna).
"Health is restored!" A Divine Beast has used a HP recovery move (such as Medinite).
"Wall appears - Beasts protected!" A Divine Beast has used a barrier spell (such as Barrian).
"A solid recovery!" A Divine Beast uses a HP Regen spell (such as Limenate).
"It's poisoned! This'll wear it down..." A Divine Beast is poisoned.
"It's been blinded - its attacks won't hit now!" A Divine Beast is blinded.
"He's about to fall!"
"He's really hurt!"
"A big hit!"
A Divine Beast drops to below 25% HP.
"[???]My, why didn't that hit?!"
"He's okay - it wasn't touched."
A Divine Beast's move misses.
"He's survived! ...'till the next turn."
"Spirit! Tremendous spirit!"
Fossa Magna landed. May also be Drops to below 25% HP.
"Damages its neighbour too!"
"Hits its neighbour too!"
"[???]Huh, did that not score?"
A Divine Beast is hit by a multi-target Skill attack (such as Shockwave)
"Defence power's down!" A Divine Beast uses a defence debuff move (such as Samakilna).
"Defence power up!"
"Defence is up!"
A Divine Beast uses a defence buffing move, or Mitrea.
"Speed has been boosted!" A Divine Beast uses a speed buffing move, or Mitrea.
"Critical hit!" A Divine Beast scores a Critical Hit.
"Deadly attack!" A Divine Beast uses a self-damaging attack (such as Kamikaze Hit).
"Ooh, a death attack!" A Divine Beast uses an Instant Death attack (such as Ad Mumarnite).
"Player 1 won!"
"East has won!"
Player 1 wins. (on points?)
"Player 2 won!"
"West has won!"
Player 2 wins. (on points?)