She has a past connection to Jean le Flambeur that isn't fully revealed until very late in the trilogy Josephine PellegriniMieli's employer, a Sobornost founder who works to her own goals. Mieli isn't the only one who can use the Kaminari Jewel, but Pelegrini apparently set her up to be a suitable candidate

The Lost Lenore: Although technically not dead, her lover Sydan chose to destructively upload herself into the event horizon of a singularity while she and Mieli were on Venus.

Cyborg: She has a pair of nanotech wings that can unfold from her back, concealed weapons in both arms and a fusion reactor embedded within her right thighbone.

Action Girl: Does most of the fighting out of the protagonists.

Thanatos Gambit: while he didn't literally die, he did knowingly allow most of his memories to be wiped as part of his planĪn Oortian warrior with Sobornost connections, she breaks Jean out of a Dilemma Prison in the opening of the first book and has been entangled with him ever since.

He's gone through numerous bodies in his lifetime, existed as a disembodied upload, and even existed as several copies at once.

Transhuman: His current body functions like a biological one down to the cellular level, but it's an artificial construct filled with state of art computer systems and other gadgetry.

Memory Gambit: A few of his schemes rely on him not remembering the full plan at crucial stages.

Impossible Thief: routinely conned and outwitted god-like minds over the course of his career.

Turns out there's a very good reason for this.

I Hate Past Me: While he doesn't remember much of what his past self did, he frequently has misgivings about the things he finds out.Gentleman Thief: Jean has consciously modelled his persona after Maurice Leblanc's Arsène Lupin, and retains a code of honour and suave demeanour befitting to the trope.

Boxed Crook: After being sprung free from the Dilemma Prison at the beginning of the trilogy, he is bound in the service of Mieli and her employer, the Pellegrini, by painful safeguards in his artificial body.

He got himself arrested to create a more altruistic le Flambeur, and gave the Pellegrini the means to break that version out, knowing she'd either send him to steal the Kaminari Jewel, or eventually allow him to remember it and do so himself.

Batman Gambit: an almost terrifying example More or less the entire first two books were part of a greater scope plan he set in motion.

Legendary master thief and conman extraordinaire, infamous throughout the Solar System, as well as the main protagonist of the trilogy.

The quantum thief