As the Gods Will: Zero

神さまの言うとおり0

After the sun burns out, a hundred people are launched into space aboard a ship built to find a new home. When a boy named Mamoru wakes from cryosleep, only five children are still alive, stranded on a planet that seems to grant wishes on command. As the group tries to figure out why they survived and the others didn't, they start to suspect the planet's wish-granting hides a much darker set of rules. This prequel manga precedes the main As the Gods Will story.