Ling Jiushi, a VR game designer, unexpectedly receives a beta disc for a "Spirit Realm", an underground new game. After an accident, he finds himself in a corridor with twelve iron doors.

Ling Jiushi learns more about the snowy world and the mysterious injured person.

The group visit the village carpenter and are instructed to head up the mountain to collect logs for a coffin.

Ruan Baijie and Ling Jiushi start to unravel the rules of the snowy world.

Only four players remain in the snow village as plans are made and the coffin is completed.

Ruan Baijie and Ling Jiushi piece together the mystery at the heart of the village.

After escaping the snow village, Lin Jiushi meets up with Ruan Baijie.

Ling Jiushi sees past players die from accidents, realizing he cannot refuse the doors. He is transported to a 1985 elevator room for the challenge.

Players receive eggs at a birthday party for triplets. The eggs are the door’s taboo condition, and accidents occur that night.

Zeng Ruguo goes mad and attacks Shen Yixian; the egg breaks, triggering death. Ling Jiushi experiences hallucinations confirming the taboo condition.

Ling Jiushi discovers the true nature of the eggs. After surviving an attack, he uncovers the identity of a boy in his hallucinations.

Moved by Ruan Lanzhu’s trust, Ling Jiushi joins Black Obsidian. Birthday party chaos reveals three overlapping timelines and a mission to change fate.

The group uses a time machine to prevent Shen Yixian’s mother from being killed, and the key appears.

Ling Jiushi moves into Black Obsidian Villa, learning the difficulty rises with each door. The next clue is the human-skin drum.

New player Xu Jin joins, and Ling Jiushi navigates a creepy exhibit with Meng Yu and Ruan Lanzhu.

Inside the exhibit, a mural tells of a sister searching for her sibling. Needle rain kills disobedient players, and the day ends back at the base.

In a tower, Ling Jiushi is trapped in a painful hallucination. Ruan Lanzhu finds a notebook, and blood footprints appear overnight.

Ling Jiushi solves a riddle from an old woman and suspects the bride-costumed monster on the roof is the missing sister.

Xu Jin reveals her true form and uses drum-induced illusions. Ling Jiushi is saved by Ruan Lanzhu.

Ling Jiushi uses drum sounds to scare Xu Jin away, the key appears, and the monster is captured on the exhibit roof. A new player arrives.

Ling Jiushi and Ruan Lanzhu enter the Satchan gate, realizing a series of hidden deaths in the school.

Tan Zaozao is revealed as a celebrity and the team receives new clues to the Satchan gate.

Ling Jiushi confronts X Organization’s fake leader and discovers secret hard drives.

The team navigates a high school gate, uncovering cursed award certificates and hidden student records.

Following a blood-written song, the team investigates a series of student accidents tied to Sazi.