Meika Katai is a first-year student at Mikagura Private Academy and a member of the Calligraphy Club. She is characterized by her shy and reserved demeanor, which makes her initial adjustment to the school's unique environment a challenge. Despite her timidity, she becomes the first female friend that the protagonist, Eruna, makes upon arriving at the academy, marking a significant connection in the story.

In the narrative, Meika plays a notable role as an early opponent for Eruna. Her first rookie match is against Eruna, a confrontation that serves as a key moment for both characters. During this duel, Eruna's ability to enjoy the battle allows her to properly use her own powers, leading to Meika's defeat.

Meika possesses a special ability known as Cutie Ink. This power is similar to another character's ability, Lovely Ink, but with a distinct limitation. Unlike the more versatile version, Meika can only bring a single character to life with her ink, a figure named Keima. Further details regarding her background, motivations beyond general participation in school club battles, character development over the course of the series, and relationships other than her friendship with Eruna are not specified in the available information.