Mi-ko is a fictional character from Sukumizu Pettan. She appears as a cute, lighthearted character associated with the series’ playful fanservice and comedic tone. Her role is primarily to add charm, visual appeal, and a lively presence within the story rather than to drive a complex plot. Because the series is centered on casual, swimsuit-themed scenarios, Mi-ko functions as part of the ensemble that helps establish the show’s breezy, playful atmosphere.