Suzuran Himenohara is a bespectacled classmate of Shiki Haruomi at his new school. She possesses cyan or blue hair styled in a shoulder-length side tail, pink eyes, and typically wears her school uniform accessorized with a ribbon hair tie. Her height is 160 cm, weight 47 kg, with measurements of 102-57-89 cm.

Profoundly shy and taciturn, Suzuran rarely speaks aloud. She primarily communicates through floriography, conveying meaning through specific floral selections. Her best friend, Midori Byakudan, effortlessly interprets Suzuran's nonverbal expressions and flower language due to their long history. Suzuran developed intense romantic feelings for Shiki upon their first meeting, leading to persistent stalking behavior where she observes him covertly whenever possible.

Despite her innocent and childlike outward demeanor, Suzuran harbors a high libido and sexual curiosity, categorized under a "pervert" personality descriptor. This manifests in intimate scenarios. Approximately one year after the initial story, in the sequel "Dokidoki Full Throttle!", Suzuran participates in a bisexual threesome with Shiki and Midori, providing oral pleasure to both partners. Her role expands in this sequel, transitioning from a side character to a main character.

Suzuran maintains her defining traits of shyness, quiet observation, and floral communication throughout her appearances. She is consistently depicted wearing glasses and school-appropriate attire, often including ankle socks, alongside accessories like a ribbon tie or pendant necklace.