Synopsis

The group is initially focused on opening a steel door, and they manage to activate Hyeonseong's skill through visualization. They quickly discover the door was not the true obstacle; the game's scenario of a collapsing bridge is about to occur. The bridge is still intact, due to them getting off the train early, but it's destined to collapse by game mechanics. A large sea creature suddenly appears, confirming that the bridge is their main threat, forcing the group to flee before it collapses.