Renowned adventurer Adol “the Red” Christin and his companion Dogi arrive at Balduq, a city annexed by the Romun Empire, only for Adol to be detained before setting foot inside. While imprisoned, he meets a mysterious woman named Aprilis who turns him into a Monstrum, a being with supernatural Gifts and the power to exorcise monsters. Now, Adol must ally with his fellow Monstrums to fend off the fearsome threats emerging from a shadowy dimension called the Grimwald Nox, as well as unravel the mysteries of the Monstrum curse, and the truth behind the unrest within Balduq.


White Cat
Raging Bull

A peerless adventurer whose one-hundred
travelogues document his journeys for future
generations to discover.

As a key suspect in the disappearance of the Romun Fleet on the Atlas Ocean, Adol was apprehended by Romun soldiers at the site of his next adventure: the Prison City of Balduq.

While attempting to escape incarceration, he came across a mysterious woman with a gun, setting into motion his involvement in the strange happenings of the Prison City and its Monstrums.

The White Cat
To all who've suffered under the
oppression of the Romun Empire--
this is my gift to you!
Wanted: White Cat

A Monstrum who fancies herself a chivalrous thief, stealing from the wealthy and giving to the shantytown, where the poorest in Balduq reside.

The White Cat makes frequent contact with the city's denizens, and is often seen making ostentatious public displays throughout town.

Her nimble, cat-like physique makes her particularly suited for speedy, agile attacks.

The Hawk
Just like swords exist to kill,
power exists to destroy.
Wanted : Hawk

A Monstrum known in Balduq as the "Feral Hawk," a maniac who tests his skills by assaulting others in the name of "divine retribution."

A vicious drinker with a penchant for violence, the Hawk enjoys personally instigating fights with others, and is prone to blowing up over minor squabbles.

He is the least cooperative of the Monstrums, and has proven to be a handful even for them.

The Doll
I am incapable of feeling emotion.
For I am merely a doll.
Wanted: Doll

A Monstrum with the appearance of a flawlessly crafted antique doll. She possesses the ability to perceive that which normal humans cannot.

The Doll conducts herself in battle with a manner one could only describe as uncanny, and her origins are a mystery to even her fellow Monstrums.

Her encounter with Adol seems to not be without some sort of purpose...

The Renegade
When she calls, we fight.
We're nothing more than puppets.
Wanted: Renegade

A Monstrum whose ragged vestments and unconventional appearance lend him his name.

An ardent pessimist, Renegade rarely shows himself in public. As such, few in Balduq can profess to have ever actually seen him.

He seems to be very knowledgeable about the history of Gllia, as well as the Prison City of Balduq itself...

The Raging Bull
Okay. NOW I'm seein' red!
Wanted: Raging Bull

A Monstrum who specializes in pure, raw power. A dynamo in battle, she wields an enormous war hammer to smite down her foes.

Unlike the White Cat and the Hawk, the Raging Bull is far more down-to-earth, and prefers mediating the Monstrums' quarrels to involving herself in criminal activity.

Rumors state that she has family living within the prison city. Whether that's true or not remains to be seen.



Heaven's Run

A Gift that allows one to run up vertical inclines almost effortlessly.

Using Heaven's Run while exploring can help find new paths in dungeons and fields alike.

Who knows what unexpected discoveries await in the highest reaches of the city?

Hunter's Descent

A Gift that allows one to glide for an extended period of time on enormous wings of azure.

Gliding from high altitudes can carry its user an impressive distance, greatly increasing their range of movement.

Utilize Hunter's Descent in battle to avoid enemy attacks and launch sneak attacks on foes from high above.

Crimson Line

A Gift that allows one to warp to remote locations, leaving only a trail of dusky crimson in their wake.

By transforming its user into a shadow, it is capable of transporting them through solid obstacles, such as rocks and iron walls.

As an added bonus, Crimson Line knocks back and inflicts damage upon enemies caught in its direct path.

Third Eye

A Gift that allows one to temporarily visualize objects and phenomena normally unseen by the naked eye.

In addition to revealing invisible foes during battle, Third Eye holds a great amount of utility while exploring, and can be used to locate hidden paths and treasure through walls.

Shadow Dive

A Gift that allows one to plunge into the darkness and move about underground.

Passages too low to enter normally can be traversed with Shadow Dive.

Use it to strike foes undetected from behind, or to avoid particularly strong enemy attacks.

Valkyrie Hammer

A Gift that grants superhuman strength, allowing one to crumble boulders with a single blow.

Pave new routes by using it to destroy makeshift walls or cracked masonry.

Valkyrie Hammer is also capable of inflicting Break when used upon certain enemies.

Heaven's Run
Hunter's Descent
Crimson Line
Third Eye
Shadow Dive
Valkyrie Hammer


  • Specs
  • Pact Edition
  • Limited Edition
  • Merchandise
02.02.21 (US), 02.05.21 (EU), 02.12.21 (ANZ)
Nintendo Switch™
07.06.2021 (US), 07.09.2021 (EU), 07.16.2021 (ANZ)
PC / Stadia
Action RPG
NIS America, Inc.
Nihon Falcom Corporation
PlayStation®4, Nintendo Switch™, PC, Stadia
English, Japanese
English, French

Pact Edition

Available for Nintendo Switch™ and PS4™
Limited Edition

Limited Edition

Available for Nintendo Switch™ and PS4™

Ys IX: Monstrum Nox Pact Edition for Nintendo Switch™ or PS4™

Monstrum Memoirs (Mini Art Booklet)

Melodies of the Macabre (Digital Soundtrack Sampler Download)

Reverse Coversheet

Chains and Chansons 1-Disc Official Soundtrack

Nails in the Coffin Hardcover Art Book

Ys IX Prequel: The Lost Sword Short Novel

The Crimson King Chibi Figure

The Monstrums of Balduq Art Card Collection

Balduq's Most Wanted Keychain Set

Monstrum Box


Preorder all merchandise at NISA Online Store!
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