Mecha Undead: I Became a God by Picking up Garbage in the Interstellar

In the era of interstellar mechas, synchronization rate determines everything. Lin Ye, an E-class synchronizer at the bottom of the military academy, found out that what he could synchronize was not a brand-new mecha, but the remains of a battlefield. He recycled scrapped parts on the junk planet and pieced together a unique "undead mecha", synchronizing the combat instinct of the late ace pilot. The Federation regards him as a heretic, and all forces covet his abilities. And Lin Ye gradually discovered that buried in the remains of these mechas was the lost history of human civilization, as well as an ancient crisis that was about to sweep the galaxy.