After defeating the Demon Beast Wolgarm and saving the children of Irlam Village, Subaru Natsuki plans a quiet date with Emilia, only for Puck's excess magical energy to bury Roswaal Manor in unseasonable snow. Subaru turns the disaster into an impromptu snow festival for the villagers, buying time until the snow melts and his date can finally begin. This standalone OVA slots between the first season's final arc and the events of Season 2.