Mandarin Kinoshita strategically guides the Gokudols' idol operations on behalf of Boss Inugane, championing his self-styled discipline of "girlology" to engineer idealized feminine personas. His approach involves crafting meticulously curated public images, behavioral guidelines, and performance aesthetics for the group, though these efforts clash with the Gokudols’ concealed pasts as former yakuza members—a reality he persistently overlooks.

Kinoshita’s misreadings of the idols’ unconventional traits fuel recurring friction: He reframes Mari’s brash mannerisms as a deliberate "Yankee" character trope and mistakes Lina—a transgender operative dispatched by an overseas syndicate—for a vulnerable orphan. These misinterpretations expose his rigid reliance on idol industry tropes, blinding him to the group’s layered criminal histories and interpersonal dynamics.

The character remains absent from the live-action adaptation, with his narrative contributions excised from the storyline.