TV-Series
Description
Mika Kashiwagi is a human character in the series and one of Ruli Tsukiyono's friends. She assists in managing Ruli's social media account "Lirurun," dedicated to investigating paranormal phenomena and urban legends called "Hologram Ghosts." Mika has purple hair cut to shoulder length, blue eyes, and consistently wears a school uniform.

On October 7, Mika joins Ruli Tsukiyono and Aoi Udagawa at Kobayashimaru Confectionery. There, she discusses recent sightings of the "Sewn-lip Man" (later identified as the Digimon Clockmon) and reacts to Ruli's Lirurun post soliciting information about it. Two days later, on October 9, she accompanies Ruli and Aoi to the New National Ueno General Museum to investigate rumors about Mummymon. At the museum, Mika expresses skepticism towards the supernatural claims and dismisses the rumors after seeing only ordinary mummy exhibits, prompting the group to leave. Before departing, she notices Aoi Udagawa standing still and calls out to her.

Later in the series, Mika informs Kotoha Igashira about the existence of Gammamon and Angoramon, confirming her ongoing awareness of the main characters' activities involving Digimon.