Another year, another year-end party! The ultimate sexual festival kicks off, with men and women wildly entangled in overwhelming ecstasy. This special night takes place at a private villa with open-air hot springs, rented exclusively to thank everyone who's been involved throughout the year. "Side.B," directed by participant Takeki Karaki, captures a unique night where various types of guests gather and reveal their true selves. Some joined hesitantly, others enthusiastically, and some with hidden lustful intentions—everyone's desires intertwine as the night grows deeper. Watch closely as this wild party unfolds in unpredictable ways.