Birth

Aqualoid was a planet that lived in prosperity, but an attack by a mysterious life force, the Inorganics, transformed it into a post-apocalyptic war zone. When Nam finds a mysterious sword, Shade, he immediately becomes the target of a planetary manhunt. Will Nam and his friends manage to uncover the secret of the sword and save their world? Or will they destroy Aqualoid to create a new one?

Synopsis from Manga News
https://www.manga-news.com/index.php/manga-vo/Birth-jp