Ninja

The Ninja is a recurring humanoid class in the Disgaea series first introduced in Disgaea: Hour of Darkness.

Characteristics
Ninjas are apostles born from darkness who serve as assassins feared by those in power. They use a unique style called Ninpo, which is based on spying and secrecy. Ninjas follow strict commandments and are very loyal to their masters. However some are actually spies for another master, throwing doubt on whether a Ninja's stated loyalties are genuine. Punishment and ultimately death await Ninjas who break their code of conduct.

Disgaea: Hour of Darkness
The Ninja is unlocked by having a Male Warrior and/or Martial Artist whose level adds up to or equals 20. A level 200 Ninja is required to unlock the Majin class. The class specializes in high evasion.

Disgaea 2: Cursed Memories
The Ninja is unlocked by having a level 5 Weapon Mastery in both Fists and Swords, then passing the associated bill in the Dark Assembly.

Disgaea 3: Absence of Justice
The Ninja is unlocked by having both a level 30 Martial Artist and Skull, then passing the associated bill in the Dark Assembly.

Disgaea 4: A Promise Unforgotten
The Ninja is unlocked by having both a level 30 Thief and Skull, then passing the associated bill in the Senate.

Disgaea D2: A Brighter Darkness
The Ninja is unlocked by having a level 20 Thief and a Martial Artist/Fight Mistress.

Disgaea 5: Alliance of Vengeance
The Ninja is unlocked by reaching rank 3 with a Martial Artist/Fight Mistress and rank 2 with a Thief, then completing the associated quest.