End of the World I'm the Boss

Robin awakens a system that expands a time-frozen pocket dimension for every $1,000 she spends. After selling her assets, hoarding supplies, and bankrupting her enemies, she transforms an abandoned zoo villa into a fortress. With a Beast-Taming Contract, she recruits mutated animals—until Henry, the villa's wealthy owner, arrives. As zombies and hostile factions close in, Robin must turn her refuge into an impenetrable stronghold.