The Master of Masters

The Master of Masters, also known simply as the Master, is a Keyblade Master who appears in Kingdom Hearts χ. Gifted with the power of foresight, he writes the Book of Prophecies and trains six apprentices: Ira, Aced, Invi, Gula, Ava, and Luxu.

Before Kingdom Hearts χ
Knowing he will soon disappear from the world, the Master of Masters gives new names to his six apprentices. He also bestows a copy of his Book of Prophecies upon five of them and assigns a unique role to each. To his sixth apprentice, Luxu, the Master of Masters grants his Keyblade and a mysterious box that says "χ Super" on it.

Kingdom Hearts χ
The Master of Masters appears in a dream has after helping Chirithy defeat Minute Bombs. Later, in another of the Player's dreams, he watches Ephemer enter Daybreak Town's clock tower.

Appearance
The Master of Masters wears a black coat, which obscures his features. One of his eyes, embedded in the No Name Keyblade, is blue with a vertical, slit-shaped pupil.

Personality
The Master of Masters behaves in an unpredictable and eccentric manner. He is a mischievous and playful individual, appearing curious about what will become of the world after the Keyblade War, in spite of already knowing the answer. Although he demonstrates a more serious side to his persona, especially when talking about the specific roles he had given to the Foretellers, he has a tendency to weave in and out of serious moments at a mere whim, being somber at one moment and laughing playfully the next. He is also shown to have inculcated an unquestioning loyalty to him within the Foretellers, despite manipulating them into starting the Keyblade War, without any apparent qualms.

He is immensely intelligent, as he is able to create new entities such as the Chirithy.

Abilities
The Master of Masters can spawn Keyblades from the hearts of others. He is the creator of the Chirithy Dream Eaters, and he is able to see the future with his Gazing Eye.