Ep. 2: Zack and Rachel explore B4 graveyard, uncovering Rachel's true name and Isaac's identity.

A man named Zack, who claims his real name is Isaac Foster, convinces Rachel to help him escape the building in exchange for killing her afterward. They ascend to floor B4, where they discover a graveyard containing a gravestone bearing Rachel's name. While Zack destroys several stones out of boredom, Rachel investigates a library and finds notes claiming knowledge of her true wish, along with files documenting previous occupants, including herself and Isaac. Rachel uses Zack's assistance to unlock a door for further progress. Meanwhile, a masked boy confronts Zack, expressing anger over the destruction of the gravestones. The pair continue their journey through the facility while dealing with these internal conflicts and external threats.

▶ Watch on Crunchyroll