Imu Rifuta attends PK Academy as a notable beauty rivaling Teruhashi Kokomi, described as extremely cute with medium-length blonde hair typically in two high ponytails, hazel eyes, and a petite frame, usually in standard uniform. Initially consumed by jealousy toward Kokomi, perceiving her as a threat to her status, Imu's rivalry dissolved upon developing romantic feelings for Kokomi, shifting her demeanor to supportive and affectionate. Her confident, appearance-focused pride softened into this supportive disposition. Imu’s romantic inclinations form complexity: she harbors strong feelings for both Kokomi and Kokomi’s brother, Makoto Teruhashi. Her attraction to Makoto is viewed by some as idolization or obsession, potentially rooted in his resemblance to Kokomi and a desire to avoid acknowledging same-sex attraction. This internal conflict surfaces in her expressed wish to "fall for a man" to prevent "switching sides." Her feelings for Kokomi remain consistent, evidenced by blushing in her presence and a shift from jealousy to open declarations of love, including hugging Kokomi upon learning of Kokomi’s affection for Saiki Kusuo. Fan interpretations debate whether her interest in Makoto reflects comphet (compulsory heterosexuality), suggesting identities like bisexual, pansexual, or closeted lesbian. Regarding other ties, Imu once pursued Saiki Kusuo under the guise of provoking Kokomi’s jealousy. After an aborted confession attempt, she fled. Witnessing Saiki with Aiura Mikoto later, she felt no envy or romantic interest, concluding her earlier pursuit stemmed from misplaced jealousy toward Kokomi. She subsequently viewed Saiki as insincere in relationships. Her character development centers on her introductory arc, transitioning from rival to Kokomi’s unrequited yet supportive admirer. Post-arc, she rarely features prominently. Some fans analyze her name ("Rifuta Imu") as a potential pun on "taimu riipu" (time leap), loosely connecting to her cyclical affections—first fixating on one Teruhashi sibling, then the other—though this remains unconfirmed. Her narrative core explores navigating feelings amid societal expectations, particularly her internal struggle over attraction to Kokomi.