Sharo Kirima, alternatively romanized as Syaro Kirima, serves as a primary series character. She maintains a longstanding childhood bond with Chiya Ujimatsu, residing beside the traditional Japanese teahouse Ama Usa An. Though attending the same elite school as Rize Tedeza, her financially constrained background necessitates a scholarship, profoundly shaping her behavior. This drives unconscious adoption of refined mannerisms and fashion awareness for social integration, alongside cultivating practical survival skills like bargain hunting and crowd navigation. She exhibits persistent anxiety over potential perceptions of affluence due to her cultivated elegance.

Professionally, she works at Fleur de Lapin, an herbal tea café distinguished by Victorian-style maid uniforms with rabbit-ear accents. This role aligns with her extensive herbal tea knowledge and passion, extending to personal herb cultivation attempts. The environment contrasts her typically timid, introverted demeanor, though she occasionally displays sarcasm or bluntness. A notable physiological trait involves extreme caffeine reactions—especially to coffee—triggering heightened energy and playful behavior. Her complex relationship with rabbits defines her character: childhood incidents of wild rabbits blocking her path or biting her instilled leporiphobia, yet rabbits like Anko and Wild Geese display strong attraction toward her. She ultimately adopts Wild Geese after it inhabits her home.

Interpersonally, she harbors deep admiration and subtle romantic feelings for school senior Rize, often appearing respectful and flustered around her. Early friction with Cocoa Hoto included sarcastic remarks and covert pranks, such as serving gymnema sylvestre tea to temporarily inhibit sweet taste perception. Collaborative experiences like jointly assuming the Phantom Thief Lapin role gradually nurtured mutual appreciation and warmer ties. Her childhood connection with Chiya enables vulnerability, exemplified when confessing fears about Rize misjudging her as wealthy. A pivotal stormy sleepover—where she witnessed Rize’s concealed fear of darkness—deepened group bonds and revealed multifaceted personalities.

Subtle hints across media imply a private past event she conceals. Her skills encompass exceptional blowdart proficiency from childhood practice and teacup aesthetics expertise. She uses a Kyocera Honey Bee 201K phone, sleeps in practical tracksuits despite borrowing cute pajamas during group stays, and employs temporary taste-altering herbs while dieting. Character development shows through growing comfort within the friend circle, evolving from image-conscious reserve to open participation in joint activities, reflecting genuine self-acceptance amid supportive friendships.