Episodes 12

1 Confinement

September 7, 2024

13m

When Ryoka, a high school girl, wakes up, she is left behind in a sealed-off apartment. A message from her mother tells her that there is a mysterious creature called "X" in the apartment.

2 Reunion

September 14, 2024

13m

When Ryoka hears that her childhood friend Shuhei is also left behind in the apartment, she calls him. What is the ecology of "X" that her mother told Ryoka as she waits for Shuhei to join them?

3 Brainwashing

September 21, 2024

13m

Ryoka and Shuhei manage to escape from "X" just in the nick of time. They try to leave the apartment, but suddenly lose consciousness.

4 Encounter

September 28, 2024

13m

X has good hearing and walks on two legs. Ryoka is perplexed by the fact that X has different characteristics than what she saw in her dream, but first she heads to the fourth floor where Shuhei is waiting to meet up with her.

5 Resistance

October 5, 2024

13m

Thanks to Shuhei's quick thinking, he manages to distract X's consciousness. However, X's pursuit does not stop, and Shuhei is eventually captured by X.

6 Light

October 12, 2024

13m

Ryoka and Shuhei make use of X's blindness and reach the elevator safely. What awaits the two on the 31st floor, which should not exist?

7 Inheritance

February 22, 2025

13m

Ryoka and Shuhei have made it to the 31st floor, which shouldn't exist in the apartment building, and have cleared level 2.

8 Signpost

March 1, 2025

13m

Ryoka discovers a candy house. There, she finds a witch who is a level 3 X. Ryoka is thrown into a loop again and heads off to confront the witch.

9 Witch

March 8, 2025

13m

Ryoka and Shuhei fight the witch to save the captured Hansel and Gretel. The witch uses spider webs to immobilize the four of them.

10 Foreknowledge

March 15, 2025

13m

After defeating the witch, Ryoka and Shuhei take the elevator to the 32nd floor.

11 Blank

March 22, 2025

13m

Without any clues from the notebook, Ryoka and Shuhei challenge Level 4. Ryoka is driven to despair by the fear of being killed again.

12 Future

March 29, 2025

13m

Having grasped the true identity of X, Ryoka and Shuhei make a desperate attempt to conquer Level 4.

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