Marco Toni, a former Polizia di Stato officer suspended after sustaining a left eye injury, transitioned to the Social Welfare Agency as a handler for Angelica, their inaugural cyborg assassin. Recommended by colleague Dr. Bianchi, he embraced his role with initial zeal, crafting the whimsical fairy tale *Il Principe del Regno della Pasta* to ease Angelica’s integration into her new existence.

The Agency’s conditioning eroded Angelica’s memories and emotions, fostering detachment. Marco, disillusioned, distanced himself, reducing her to a tactical asset. During an operation, she intervened to protect him from a truck bomb, a selfless act that jarred his perspective.

As Angelica’s cognitive decline mirrored neurodegenerative disease, Marco reengaged, witnessing her final moments as she recited his story without recalling him. Her death spurred his resolve to approach future charges with empathy, acknowledging his prior emotional neglect.

A steadfast user of Steyr-Mannlicher firearms during missions, Marco later signaled openness to mentoring another cyborg, though subsequent assignments remain undocumented.