Shizuku, recognized as Papillon Margarette, begins her journey as a high school graduate studying for college entrance exams, distinguished by short blond hair, golden eyes, and glasses. Her life shifts when trans beauty guru Marilyn redesigns her appearance, leading her to embrace a hostess role at Papillon Pub and a transformed identity. A romantic moment with Hikaru Shishio sparks her autumn flower orb’s activation, cementing her magical-girl evolution.

As Papillon Margarette, she dons a lingerie-themed ensemble: a yellow bikini top layered under a white corset fastened by an orange ribbon, paired with a golden-patterned loincloth. Light yellow knee-high stockings, garter belts, and a coin-adorned choker complete her look. Her transformation cry, "Margarette Orgasm power, Make Up!", precedes her signature attack, "Marguerite Guarana Fantasy!".

In the ONA narrative, Shizuku allies with Tsubomi against the Dinasty, infiltrates Kabuki Butterfly disguised as Papillon Rose, and is captured by Sister Pchela. Rescued by Papillon Rose and Lily, she later sacrifices herself in a suicidal strike during the Alveare conflict, freezing in an icy dimension. Her dormant flower orb reignites to bolster Papillon Rose’s final assault, and Tsubomi’s wish ultimately restores her to life.

The TV series depicts Shizuku grappling with amnesia about her magical past until memories resurface, prompting her return to the Papillon team to protect Akihabara from alien forces. Employed at New Papillon maid cafe, she battles monsters summoned by the Susanoo sisters alongside Tsubomi and Anne. Notable engagements include confrontations with Tsuchinogon and Sparky, showcasing her tactical prowess. Her resilience emerges when consoling Tsubomi post-defeat and navigating ties to Torakage, a figure mirroring her lost love Hikaru. Shizuku’s arc culminates in a symbolic rebirth, echoing themes of perseverance and cyclical renewal.