Xia Yan arrives in the apocalypse with a system and takes over a dilapidated hotel. She transforms it into an absolutely safe haven in the post-apocalyptic world, offering unlimited delicious food and clean water that zombies cannot invade, all exchangeable with crystal cores. As the hotel continues to level up, she opens branches and builds a resort island. Working with Chu Wanfu, she confronts Jing Wenbin's forces and helps survivors, including the Su Mei squad. She establishes schools and hospitals, giving countless people hope to survive. She always considers herself a businesswoman, yet unwittingly saves the world. When peace finally returns to the land, the hotel gradually shrinks after fulfilling its mission. She is the apocalypse's first granary.