Verte, the true prince of Dorrente operating under the alias Prince Flo, maintains a disguised identity throughout much of his story. After rescuing Goemon Ishikawa during a prison infiltration, he seeks the swordsman's mentorship to sharpen his combat skills and cultivate greater battlefield confidence, focusing on becoming a more proficient and self-assured fighter.

His past reveals a calculated alteration of his appearance through plastic surgery, orchestrated by the criminal Finnegan. This surgical manipulation enabled Finnegan to physically impersonate the prince, advancing his plot to usurp Dorrente's throne. The deception intertwined with a wider conspiracy using the prison as a front for illegal arms trading and black market operations.

Verte's arc culminates in a direct confrontation where he neutralizes Finnegan. He then rescues Lorensa, a key prison administrator figure. Following these events, Verte publicly declares his legitimate royal status and his intent to claim Dorrente's kingship, demonstrating his evolution from seeking guidance to asserting decisive leadership.

Verte and Lorensa later formally acknowledge the assistance of Lupin and his associates in dismantling the conspiracy, concluding his character journey within the special.