Arsène Lupin, despite being a thief, is presented as a charismatic and likeable protagonist. He possesses an undeniable charm and wit, challenging traditional notions of morality. Lupin's actions, while criminal, often expose hypocrisy and injustice within society, making him a Robin Hood-like figure who resonates with readers.

A key element of Lupin's character is his mastery of disguise and his ability to seamlessly blend into any social circle. From adopting different personas to elaborate ruses, Lupin uses deception as his primary tool, keeping readers guessing his next move and constantly challenging the authorities pursuing him.

Leblanc weaves suspenseful narratives centered around elaborate cat-and-mouse games between Lupin and his pursuers, often led by the persistent detective, Ganimard. The stories are infused with a sense of playful rivalry as Lupin stays one step ahead, leaving clues and taunts for those trying to catch him.