(Takes place after Gavv's winter movie : Guilty Parfait & episode 15 of Zeztz) During a snowy day on Christmas eve, Liselle collaborates with Nox & Evil Santa/Christmas Nightmare to create a new "Ultimate Dark Snack." This snack is harvested not from human happiness, but from the corrupted dreams of humans during their festive sleep. Baku Yorozu (Zeztz) is tasked by CODE to investigate a "Sleeping Sickness" where victims dream they are eating endless, addictive sweets. Shoma (Gavv), sensing the unusual "Dark Snack" aura, follows the trail to the dream world, where his physical nature as a Granute hybrid creates a unique bridge between reality and Baku’s lucid dreaming world. The villains, a Pastry Nightmare, traps the main cast in a "Sugar-Coated Nightmare" with a little assistance from the Gingerbread Granute. In this world, Shoma is forced to relive his trauma of losing his mother, while Baku’s "bad luck" in the real world manifests as a physical barrier he cannot overcome.