Am I Trapped in a Building Full of Monsters?

(The book just launched, so the rating is low. There’s nothing I can do about it...) This story features: sci-fi + fantasy + zombies + melancholy + a slow pace + internally consistent logic. What to look forward to: follow the protagonist as she explores the “secrets” and “monsters” on every floor, faces one boss battle after another, breaks through her limits, and finds mutual redemption! But it does not include a System, reincarnation, supernatural powers, mindless power fantasy, a golden finger, or similar plot elements. In a world of the 22nd century, society has evolved in a spiral. People no longer have concepts such as territory; instead, the land is divided into regions of all sizes. Each region is home to a tangle of factions and astonishingly distinctive technologies. In Zone AB stands a colossal skyscraper that rises into the clouds. One day, as the heroine, Qian Yueying, is heading to work as usual, an unknown plague suddenly breaks out inside the building! The disaster turns hundreds of thousands of people into man-eating monsters. The heroine is caught up in it too, and there’s no escaping her fate… As numerous outside factions rush in amid the chaos, each scrambling to carve up the building, countless secrets are gradually revealed as the story progresses… This work is also titled: Monster Skyscraper. It is the second installment in the original three-part Heart-Ring Journey series. Each volume differs in plot and narrative style, and while the stories are connected, you can start with any volume without affecting your understanding.