Four young women accidentally fall into infinite secret realms. First entering a gloomy campus dungeon, they crack fatal rules, expose cruel truths, permanently seal this place, and make a name for themselves in one battle at the transit station. After resting, everyone steps into a seemingly peaceful residential building, deeply trapped in the reincarnation of generational obsessions, and unlocks the tragedy sealed for many years. The four's talents complement each other: Yu Jinyue perceives hidden dangers, Chang Yuqing resists damage, You Shaowei dismantles rules, and Zhu Fu masters group protection. Relying on each other in desperate straits, getting through countless death traps, facing the twisted human nature behind ghost stories, traveling back and forth between thrilling secret realms and dull daily life, a thrilling survival adventure full of bonds officially sets off.