Shizuku Osaka, a first-year Nijigasaki High School student from Kamakura, previously attended Seiran High School and commutes long distances to school. An only child from an affluent family, her spacious home frequently accommodates group trips and study sessions, shared with her golden retriever, Ophelia. Her traditional Japanese beauty features long dark brown hair styled in a half ponytail with a red ribbon, light blue eyes, and a height of 157 cm, complemented by her signature light blue color (#01b7ed).

Academically proficient, she balances theater club commitments and school idol activities with ease. Mature and polite yet timid, Shizuku habitually prioritizes others—hosting peers, tutoring classmates like Kasumi, and defending against excessive teasing despite her reserved demeanor. Her selflessness masks a tendency to overcommit and internalize anxieties, fearing judgment for her love of classical literature, historical plays, and vintage films.

Childhood exposure to theater ignited her passion for acting, leading to active participation in scriptwriting (adapting works such as *The North Wind and the Sun* and *The Tale of Princess Kaguya*), costume design, and rigorous voice training. Persuaded by a senior, she joined the idol club, perceiving performances as an extension of acting’s emotional resonance with audiences.

Her journey traces growing confidence in self-expression through both stages, overcoming early fears of societal scrutiny. A pivotal arc involves temporarily stepping back from idol activities to focus on theater, later merging both passions upon her return.

Athletic yet accident-prone in ball sports, she finds joy in sewing and curating Japanese-style accessories, especially for productions. Future aspirations include motherhood intertwined with artistry—envisioning theatrical performances crafted for her own child, merging personal fulfillment with creative legacy.