Yūrei (Earth-499)

The Yūrei are a group of four people Daisuke Ichiro saved from death, and in return aid him in his quest to recreate the world.

Daisuke Ichiro
The leader of the Yūrei, who was born with supernatural abilities and is destined to recreate sentient life in the world. He is the leader of the Yūrei.

Yurei of Evolution
Yuuta Akira was saved from death during a riot, where she was being beaten because of her supernatural abilities. Ichiro slaughtered her attackers and took her to safety.

Yurei of Imprisonment
Yuuta Shin was saved from death when Akira asked Ichiro to go back for her brother. He arrived days after Akira had disappeared, to find Shin about to disembowel himself, believing his sister to be dead. Ichiro stopped the blade and took Shin to Akira, saving his life.

Yurei of Chaos
Ezekiel was saved as a baby, when Ichiro rescued him from an abusive household. Ichiro placed him in a caring home in a possible future timeline, where he would also learn to resent humanity as it is, so that when he confronted him years later Ezekiel would gladly join him.

Yurei of Order
Vita Lukas was saved from freezing to death while skiing, when Ichiro gave him pyrokinetic abilities that caused his body to heat up, saving his life. Although hesitant at first, Vita soon came to see humanity is corrupt, and joined Ichiro's quest to destroy society and start again.

Trivia

 * In Japanese mythology, Yūrei are spirits that have been kept from the afterlife, whereas on Earth-499 they are kept from death itself.