Mitsuru Tenma, a first-year student at Yumenosaki Academy, belongs to the idol unit Ra*bits alongside Nazuna Nito, Tomoya Mashiro, and Hajime Shino. Born September 7 and aged 15, he participates in the Track & Field Club. Slightly shorter than average with an average build, he sports spiky dark brown hair and light brown eyes. His standard uniform features an unbuttoned collar with a blue or red tie, a black mock turtleneck beneath, slightly rolled-up pants, and white sneakers accented with blue and red, plus blue laces. For Ra*bits performances, his stage outfits alternate between a light blue and white shirt adorned with blue floral motifs and a red tie, or a blue-and-white sailor ensemble with gold stripes, a short tie, blue shorts, dark blue high socks, and brown boots. The sailor outfit includes accessories like a bell with dangling ribbons and a white hat, underscoring the unit’s cute aesthetic. Energetic and cheerful, Mitsuru dubs himself a "superstar," constantly dashing around campus. He revels in sunbathing and adores bread, especially croissants. Academically challenged, he avoids complex subjects and occasionally calls himself "dumb," yet exhibits sharp intuition and emotional intelligence—noticing subtle details and offering heartfelt support. Sincere and openly affectionate, he hugs friends freely and voices his appreciation. His straightforwardness makes him gullible; he interprets statements literally and misses sarcasm. Beneath his exuberance, Mitsuru harbors fears of seeming like a "bad boy" or burden. He avoids discussing problems, worried he might alienate others, and defaults to running from difficulties—a habit rooted in past social struggles. He treasures his current friendships and carries a childhood robot figure as a keepsake. His autograph, written in simple hiragana, incorporates a dust-cloud motif reflecting his passion for running. Gifted in physical feats and idol performances, Mitsuru leverages his reflexes and stamina. He learns dances and songs rapidly, performing with vigorous flair, and contributes imaginative ideas during unit activities. Gradually, he cultivates emotional openness, relying on friends during hardships. This growth fuels his commitment to spreading joy as an idol, aspiring to become a multi-talented superstar skilled in acting, singing, and variety shows. He has parents, an older brother, and an older sister. His hobbies include running and sunbathing, though he dislikes hats or head coverings. His signature specialty is performing backflips, showcasing his agility. Mitsuru’s journey revolves around balancing his vibrant exterior with inner vulnerabilities, striving to uplift others while confronting his own fears.