Shiro Kuroi’s manga places later scavengers outside the disaster and a young witness inside it.
A diary connects two groups aboard the ship in Shiro Kuroi’s Leviathan. Scavengers discover the damaged vessel drifting between Earth and Proxima Centauri; the writing they find belonged to a young person who traveled on it. Publisher JBC’s official story and series description.
The resulting mystery has both a physical location and a recorded past. The newcomers can enter the wreck, while the diary gives them access to events they did not witness. Its entries disclose what happened to the children aboard. Publisher JBC’s official story and series description.
That arrangement makes the act of reading part of the premise. The ship is already damaged when the scavengers arrive, so their discovery begins with consequences and works back toward the people involved. The diary is the link between those times. Publisher JBC’s official story and series description.
JBC credits Kuroi as both writer and illustrator and identifies Leviathan as a complete three-volume series. Ki-oon’s first-volume record dates its French publication to January 2022. Those book records establish the manga’s format and authorship without relying on claims about a screen adaptation. Publisher JBC’s official story and series description. Original publisher Ki-oon’s volume and series record.