In the OVA "Memory Snow," Subaru Natsuki enjoys a period of peace at Roswaal Manor after the Wolgarm threat's resolution in Arlam Village. His actions consistently reflect established traits. He shows determination and creativity, meticulously planning a date for Emilia while wearing a comical disguise villagers immediately see through, and persistently rescheduling despite weather postponements. Confronting the manor's unnatural cold caused by Puck's "Hatsumaki," Subaru takes initiative, organizing a snow sculpture festival inspired by Hokkaido traditions. This serves as both a communal village activity and a method to manage Puck's excess energy.
Interpersonally, Subaru maintains playful dynamics. Teasing Ram earns him forced chores as punishment, while discovering hidden alcohol sparks lighthearted exchanges about sobriety. He shares camaraderie with Rem during household tasks, where her concern for him is evident. A banquet scene depicts drunken Emilia and Rem resting on his lap, reflecting established trust. He also engages Beatrice in banter, attempting to coax her from the library to join the festival despite her reluctance.
Underlying vulnerabilities surface intermittently: nightmares hint at residual trauma he avoids discussing, and frustration over the postponed date subtly reflects deeper insecurities about his relationship with Emilia. The OVA reinforces his role as an outsider adapting, drawing on Earth experiences like Hokkaido festivals to navigate this fantasy world's challenges.