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Tropes:
- Affectionate Parody: Of the horror movie as a genre, with the characters immediately being Genre Savvy about what kind of story they're in and can opt to ruthlessly exploit it in order to get their way.
- Arc Villain: It turns out that the villain of the piece is a Servant named Xu Fu who broke free from her Master and set out to kill Consort Yu permanently as part of a promise they made long ago. She is also responsible for Abigail (Summer) and Moon Cancer Kiara's rampage across the lake.
- Breaking Old Trends: This is the first summer event to feature absolutely zero variants of Altria or other characters with a "Saberface", unlike the last four summer events.
- A Day in the Limelight: Consort Yu is the spotlight Servant, who was planning on taking a romantic vacation with Xiang Yu but unfortunately had to go to the camp by herself.
- Good Thing You Can Heal: Consort Yu and Kiara are the only servants successfully targeted by the Death Mask, with the former's natural regeneration and the latter's Independent Manifestation being the only things averting a permanent death.
- Killed Off for Real: The Death Mask used by Xu Fu is speculated to be capable of corrupting a Servant's Saint Graph, preventing them from even re-summoning the same servant.
- He's All Grown Up: An alternate version of Hans shows up in the event, way older than he is in the playable version.
- Lotus-Eater Machine: Moon Cancer Kiara traps Servants in worlds of their desires, and tries to manipulate you into joining them.
- Ma'am Shock: When Kiara Lily ages up and becomes Moon Cancer Kiara, Mash mistakes her for Lily's mom. Kiara goes grey, while glass is heard breaking.