Haruaki Fusaishi is a young man who has just arrived in Yasumizu, a remote village in a mountainous region of Japan. He will become involved in a sinister local tradition known as the festival. Among the villagers lurks the werewolf, an entity that has sworn to take revenge on everyone.

Keep track of all your choices thanks to an easy-to-understand flowchart. Replay the story and choose different actions to see different outcomes and learn about the characters' motives. A death can be rewarded with new information, a Key that will give you access to new paths and bring you closer to the identity of the killer.

Haruaki Fusaishi will find himself trapped in an inescapable loop. Aware of his fate, he will use all the knowledge he gained before his tragic death.