Mei Mei is a female giant panda, the younger sister of Panda and daughter of Panda-Mama. Her appearance mirrors her brother’s but features mauve flower-shaped ear accessories and a petite frame, with frequent blushes coloring her demeanor. Beginning as polite and earnest, her character shifts in episode 21 when she forms a fervent admiration for Handa, the zoo’s panda caretaker, captivated by his panda-resembling build. Dubbing him her "prince," she enlists Panda to clandestinely photograph Handa at work, though she insists her devotion is non-romantic—a sentiment cherished privately "in her heart." Her bond with Panda blends playful sibling antics and strategic persuasion, exploiting her status as the younger sister to coax favors. She once orchestrated a meeting between Panda and Rin Rin, a panda-obsessed florist Panda dislikes, yet she dismisses Rin Rin’s affections, deeming his slender physique incompatible with her tastes. Her name derives from the Mandarin term for "little sister." She performs the song "Bamboo Rendezvous," and her interactions center on familial ties and her steadfast, unspoken admiration for Handa, with no documented tensions or narrative expansions beyond these connections.