Miana is shocked when her sister Anna reveals she was never a prisoner but a willing partner with a farmer, planning to use Miana's unique mutation serum to gain mutant powers. Anna admits she let herself be captured to force Miana to take the serum, aiming to inject Miana's blood and control all zombies to dominate the world. The confrontation escalates as Anna threatens to inject a virus-coated syringe to turn Miana into a zombie immediately if anyone interferes, leaving Miana trapped under Anna’s control and the threat looming.