|Hair||, Blunt Bangs, Braided Odango, Brown, Short, Straight|
|Body||, Average Height, E+ Cup, Pale, Slim, Teen|
|Clothes||, Ankle Boots, Ankle Socks, Coat, Decorative Belt, Glasses, Leotard, Necktie, Shirt, Thigh Band, Thigh-high Stockings|
|Personality||, Sweets Lover|
|Role||, Based on a Fictional Character, Detective, Rival|
|Engages in (Sexual)||, Boobjob, Drunk Sex, Virgin Sex|
|Visual novels||Side character - Girls Book Maker -Shiawase no Libretto-|
Nominally the antagonist to Arsene Lupin in Maurice Leblanc's short stories, Ganimard cooperates with Lupin's heists by playing out the role of the thwarted rival whilst secretly aiding Lupin from behind the scenes when her clumsy mistakes threaten to expose the entire charade. Capable, competent and organised, Ganimard has the entire Parisian police force at her disposal in her ostensible quest to catch Lupin.
<hidden by spoiler settings> Lupin's clumsy incompetence gives Ganimard no end of stress as she has to work behind the scenes to allow Lupin to escape without her subordinates finding out. She frequently vents her frustrations by gorging on whisky bonbons in her untidy flat alone.
When Lupin is corrupted by the parasitic worm, Ganimard takes up Eito's challenge to catch Lupin before the end of the day and is allowed to go all out without worrying about Lupin's silly mistakes. She eventually corners Lupin on top of the Eiffel Tower and gets Lupin to realise power over the worms to rob and steal was not the same as pulling off a stylish robbery through one's own talents and skills.
In response to Eito's challenge to become more of a rival to Lupin, Ganimard becomes the "impostor Lupin", hoping to motivate Lupin into training harder and getting rid of her propensity for catastrophic errors. Lupin eventually sees through the ruse, but appreciates Ganimard for the intent at the end of the mini-arc.