Lisa Argento is a university student studying archaeology in the Italian city of Genoa. She is the granddaughter of Professor Theo Argent, a respected archaeologist who uncovered a missing page from Marco Polo's travel journal. Lisa is polite and softly spoken, but she has lived a sheltered life and becomes upset easily. Following her grandfather's murder and the false accusation of the thief Lupin III, she finds herself drawn into a dangerous conflict. She is pursued by the police and by Lombardo Industries, a powerful arms corporation, because she is the only person capable of deciphering the secret page and locating the treasure it describes. Lisa's role in the story is that of a determined young woman seeking the truth behind her grandfather's death. She forms an uneasy partnership with Lupin, relying on her academic knowledge to interpret the historical document. Through this journey, she shows courage and resourcefulness despite her initial fragility. Her notable ability is her expertise in archaeology and her capacity to decode the missing page of Marco Polo's records, which makes her central to the quest. She possesses no physical or combat skills beyond her scholarly talents.