Misa Konohata, born December 2 under Sagittarius, stands at 160 centimeters with light brown hair cascading to her waist, partially secured by a purple scrunchie, flanked by shorter shoulder-length strands. Her eyes shift in a gradient from violet to yellow, mirroring her sister Mira’s eye motif yet contrasting with Mira’s shorter hairstyle.

A former high school student council president celebrated for academic rigor, she balances a poised, authoritative presence with comically clumsy struggles in sports and household chores, adding relatability to her polished image. Affectionately dubbed "Big Sister" by Mira and "Misa-nee" by peers like Ao Manaka and Moe Suzuya, her sentimental side surfaces in a miniature shrine housing a stone gifted by Mira—a testament to cherished family bonds.

Privately, she methodically counts prime numbers, channeling her analytical curiosity. Post-graduation, her departure for university indirectly steers the narrative: she offers her vacant room to Ao, enabling Ao’s continued residence with Mira to pursue their asteroid-discovery goal. Though physically absent, she maintains ties through daily water offerings to her shrine.

While minimally involved in the Earth Sciences Club’s activities, she subtly champions their newsletter, endorsing Mira’s passions. Her transition from active leader to offscreen influencer stabilizes Mira and Ao’s living situation during pivotal moments, anchoring key plot developments through strategic, behind-the-scenes choices.