Ofumi appears exclusively in the 2007 Lupin III special. She operates as a thief within feudal Japan's turbulent Sengoku period. Her existence is the direct ancestral link to Fujiko Mine, making her survival imperative for Fujiko's future birth; her death would erase Fujiko from existence, creating narrative stakes with profound temporal consequences.
She encounters Lupin III, Jigen, and Goemon after their displacement 500 years into the past. Unlike her descendant Fujiko, Ofumi relies primarily on cunning and traditional thieving skills rather than seduction or manipulation, demonstrating resourceful methods grounded in her historical setting.
During the special, she is drawn into the conflict between warring factions vying for control of a shrine dedicated to time travel. Her actions contribute directly to resolving the central conflict driven by the time-traveling antagonist Mamo and the quest for the 'White Tamayura' time treasure.
No official Lupin III media beyond this special features the character. Her background prior to encountering the time-displaced trio and her fate following the special's events remain undocumented. Her entire narrative arc is contained within this single story.