The nu mou have canine features, bearing elongated faces and tails. Their ears, long and thick with a hole near the end, are often decorated with various earrings. The nu mou's average height, ranging between 130–150 cm, coupled with their bent posture, makes them come across as rather small. They have a lifespan more than three times that of humes; however, their physical appearance remains mostly the same throughout their life, and even young nu mou have a generally aged look. Their hair is white, although the fur on their tail is often sandy in color. Skin shades vary between individuals, although they are often pale or dull.
Despite being ill-fitted for physical battle, the nu mou are proficient in magick. They have a highly developed intelligence, allowing them to excel in this field much more than the other races. In addition to their magical abilities, they can also call on the abilities of monsters to help.
The nu mou in Final Fantasy XII retain their appearance from their debut in Final Fantasy Tactics Advance. Their skill in controlling Mist and talent with magic gave them the ability to implement stronger magic compared to other races. However, their small and bony physique put them at a disadvantage when it comes to melee fights. They are generally interested in scholarly activities and music.
The nu mou are a people of legends and tradition, passing down many tales, their most well known being the legend of the Espers. A reserved race, they generally live quiet lives. Most are found on the sacred Mt Bur-Omisace where, as part of the Kiltia sect, they take care of pilgrims and those wounded by war. The rest are scattered across Ivalice.
Ma'kenroh, who bears a name similar to one of the randomized names in Final Fantasy Tactics Advance, Mackenroe, is the first nu mou players will normally encounter, when they visit Montblanc's Clan Centurio in Rabanastre. He can be found standing at the top of the stairs, beside the viera named Krjn, and will give clues to the location of Vaan's current Mark.
Ma'Kleou waits by the cliff in the Nabreus Deadlands, and gives the player a quest to find three medallions, which will eventually lead to a hidden Esper in the Necrohol of Nabudis. As part of this quest, Vaan will meet Roh'Kenmou in the residence of Old Dalan, and Roh'Kenmu, with a nameless associate, in the Magick Shop in Archades.
In Final Fantasy Tactics Advance, the game that introduced the nu mou, they are the most skilled race in the magic field. Lacking characteristics that would make them fit for the frontlines, they usually support allies from the back. There are only two nu mou important to the story: Babus Swain, the personal assistant to Prince Mewt, and Ezel Berbier, the creator of Anti-Laws.
Their jobs are overwhelmingly magic-based, though Sages and Beastmasters are adequate in melee battle. They can control monsters with the Beastmaster class, and are the only race to get the Morpher class which lets them use the abilities of monsters in the Cyril Monster Bank.
Canine features and long, droopy ears set this race apart. Even-tempered and thoughtful, they possess the capacity for great intellect. Like moogles, they shun water and avoid it to all cost. Though ill-suited for the front lines of battle, they make incomparable mages and weavers of magick.
In Final Fantasy Tactics A2, the nu mou are of the same appearance as their counterpart in Tactics Advance.
However, they can no longer enter water unless they are equipped with Winged Boots. There are nine jobs for the nu mou, with two being new ones not in Tactics Advance: Scholar and Arcanist, although Morpher was removed from this game.
Nu Mou can be obtained in these locations during Rosefire or Coppersun:
- Graszton - White Mage, Black Mage, Beastmaster
- Moorabella - Time Mage, Arcanist, Illusionist, Sage
- Nazan Mines - Alchemist, Scholar
Nu Mou appear in Final Fantasy Trading Card Game with their jobs from Final Fantasy Tactics Advance and Final Fantasy Tactics A2. Babus Swain and Ezel Berbier also have their own trading cards.
- Since both the Mindflayer and Piscodaemon were once nu mou, it can be said that Mindflayers are the corrupted or the abominated version of nu mou whom failed to use their wisdom wisely.