After unlocking Hangout Events, Travelers can go to the Hangout Events tab on the Story Quests screen to accept these choice-driven Story Quests. Each act in the Hangout Event requires 2 Story Keys in order to access. Further keys are not required for all of the content in that act.
During the quests, the different choices Travelers make in dialogue will influence the direction of the story and lead to different endings. Every quest possesses a Heartbeat Value, but not all of them will utilize this feature. This value can increase or decrease depending on the Traveler's responses. If the meter fully empties, then the quest will fail.
During the quests, the different choices you make in dialogue will influence the direction of the story and lead to different endings. Decisions that branch into different scenarios will also serve as checkpoints to be returned to so the player can unlock different endings. Rewards from unlocking all endings include primogems, among other items.