Aizen

Aizen (アイゼン Eisen) is Tetsu's fourth incarnation. During one of Arion's attacks, he sacrificed himself to keep Lafalle alive.

Personality
Aizen seems laid-back and relaxed.

Appearance
Aizen has spiky hair that sweeps to the left side of his head. He wears a simple high-collared shirt and pants, with a coat over it.

History
Aizen was born sometime during the 34th century. At some point, he got married, and later had his daughter Riffle.

One day, while taking care of his nephew Lafalle, he asked him if he wanted to see where his parents worked. When Lafalle responded negatively, Aizen showed him the tickets he'd gotten, and said that Lafalle's parents wanted to see him.

A week later, Aizen brought Lafalle and Riffle to the laboratory where Lafalle's parents work. However, shortly after arriving, alarms and explosions began going off. As an explosion went off right in front of them, Aizen attempted to shield Lafalle from the flames, leading to his body burning up.

As his brain was still intact, he was kept alive as a "non-living" and taken to the Sleeping Tower.

Relationships
Riffle: Aizen's daughter. He was very close to her, and wanted to protect her.

Lafalle: Aizen's nephew. He felt an innate connection with Lafalle, and believed that he was born to protect him.

Masiro Tetsuma: One of his future incarnations.

Etymology

 * Aizen comes from the Old English word Ælfwine, which means "friend of the elves."
 * Aizen also means "climbing irons/the metal pins in climbing shoes" (アイゼン) (aizen).

Trivia

 * TBA