Betrayed by A-Rank Shipgirl, I Grab the SSS-Rank Campus Belle

In a post-apocalyptic world overrun by disaster, traverser Zhang Peng is brutally betrayed by an A-rank fleet girl. In a twist of fate, he picks up the discarded SSS-rank "scrap" carrier—the stunning school beauty-turned-wreck. Armed with a check-in system, he upgrades her from ruin to legend, slapping down betrayers and rising through the ranks. Together, they fight, grow stronger, and build their own paradise amid the end of days.