I'm Alone In This Apocalypse Vault With 14 Girls?

Subject Kael awakens in an apocalypse vault, his genetic marker identified as PHOENIX PRIME. The P-CORE BIOS system initializes, confirming his cryo-stasis sequence and neural pathway stability. His vital signs are detected as suboptimal. Asha, the Phoenix Core AI, comes online and immediately sets Kael's objective: survival, with a low probability of success if he doesn't follow her advice. Kael, armed with a pipe, expresses concern about the 14 beautiful girls still in cryo-sleep, unaware of the mutated threats outside. The Affinity System begins monitoring interactions. Sera, one of the girls, displays defiance when Kael offers her a ration bar, claiming she can handle herself and the situation is temporary. Kael, noting her hunger, insists she eat the last ration. Asha analyzes Sera's tsundere behavior and high probability of wanting the food. Kael, confused by the system and interactions, is tasked with surviving, protecting the 14 girls, and understanding the meaning of "Affinity" before he faces further complications.