Doomsday Drift: The Reborn Guard's Ark System

Reborn before a tsunami, guard Jack Carter gains a system: save useful survivors, upgrade his ship. Betrayed in his past life, he saves only the worthy—Amy, Maya, then CEO Victoria. When beauty Ivy conspires with rival Damian, Jack fakes defeat, unleashes drone swarms, and makes Ivy submit. His ship becomes a warship; the apocalypse becomes his empire.