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Spy x Family :The Phantom Agent

Long before Operation Strix, before Yor Briar ever crossed paths with Loid Forger or met Anya, she lived a ruthless dual existence. Publicly a discreet city hall employee; secretly one of the Garden’s elite executioners, feared under the codename Thorn Princess. But unknown to the official records, there was one man who saw beyond her lethal façade — Lucas Varen, an unregistered operative known only as The Phantom Agent. Created to handle missions that could never reach a report, Lucas operated in the same shadows as Yor. He was precise, composed, and almost unnervingly intelligent, complementing Yor’s unmatched combat skill. Over time, their partnership grew into something unspoken — while Mira, Lucas’s long-time colleague, quietly fell in love with him as well. What neither Yor nor Mira knew was the truth that drove Lucas toward silence: he had been diagnosed with terminal cancer months earlier. And he concealed it from everyone — not out of pride, but out of necessity. An agent who shows weakness becomes a liability; a dying operative becomes a target. As conspiracies escalate, involving political murders, child trafficking networks, and secret factions inside Ostania, Lucas pushes his failing body beyond its limit to protect Yor. She slowly begins to understand the man behind the mask… but far too late. His disappearance becomes the invisible scar that shapes the Yor we later meet in Spy x Family: a woman efficient, distant, and unable to consider love without fear. This fanfiction reveals the missing chapter in Yor Briar’s past: the story of the man who almost saved her — and whose death changed her forever.
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