Survival in the Apocalypse, Starting with Teammate Utaha

Shen Zhao was inexplicably pulled into a perilous post-apocalyptic survival game. He found himself immediately surrounded by zombies. His teammate was a beautiful, long-haired, black-haired girl with no fighting skills. Fortunately, he awakened a survival sign-in system, allowing him to sign in daily and claim rewards! On the first day, he instantly gained demi-human blood, and after death, he was resurrected with full health! Post-apocalyptic survival? Looking at Kasumigaoka Utaha pleading for help outside the door, Shen Zhao smiled. This was clearly his paradise to play with his anime goddesses!