In a dark alley, a man named Blackwell is ambushed by hired attackers, who declare their employer has paid enough to kill him there. Instead, Blackwell swiftly defeats them, causing them to panic and flee, warning each other that they've been caught on camera. Later, a man publicly presents a core tech algorithm as his own work at an event, dismissing his former female tech lead as a mere 'typist'. To Vivienne's shock, he then publicly proposes to her, calling her his fiancee, and she accepts. She reflects bitterly that her five years of work became his trophy, while he mockingly thanks the 'backstage team' as cheap labor. Alone, Vivienne vows that with one press of her finger, she can destroy everything he has.
A woman confronts her betrayal after a man is shot, revealing a deeper plot. The shooter is a skilled hacker who intervened by crashing the city's traffic network, saving the woman's life but refusing to say why. When questioned, he claims he's just reclaiming what's his, dismissing the wounded man as a coincidence. The authorities arrive, questioning the woman about the attack before taking her away, leaving the hacker to declare the real game has just begun.
A man awakens and immediately demands information about a mysterious woman, but his subordinate Marcus reports her background is completely erased, frustrating him. When a woman visits him, he flirts, then surprises her with a marriage proposal which she rejects, calling him a psycho. He reveals he has investigated her, knows the stolen algorithm she seeks will expire in six months, and offers revenge, power, and protection in exchange for her help fighting his rivals and avoiding family-arranged marriages. She refuses, but he counters that her family is crumbling and she has no choice, just as an urgent matter interrupts their confrontation.
Ian celebrates his company's impending IPO with his new fiancée, Vivian. Onlookers gossip that Vivian has replaced Ian's former partner, a dedicated female programmer who helped build their billion-dollar core algorithm. In private, Ian cruelly dismisses the woman as a disposable tool, while Vivian feigns jealousy. The programmer, overhearing their conversation, hacks the system. As Ian and Vivian toast their success, the core algorithm crashes, and a mysterious message from the scorned partner arrives, signaling the game is on.
A woman named Scarlet meets a man, Lord Blackwell, who demands she become his wife. She challenges his qualification, but he reveals he has tracked her unique hacking signature for three years. He proposes a deal: she needs the power of his empire, and he needs her deadly skills. She signs the contract, and he instantly announces their marriage to the world, declaring her the legitimate Mrs. Blackwell. Despite her insistence it's just a deal, his assistant warns her that the cruel internal rules of the Blackwell family present a greater danger than any external threat.
A former tech assistant, now married into wealth, attends a high-profile event with a powerful man named Howard. Her ex-boss Ian panics upon seeing her, realizing her algorithm is core to his company's success and his theft is exposed. When Ian calls, she coldly blocks him. A man praises her decisiveness and arranges her move to a manor under new security. Confronting a new battlefield, she arrives to meet Lady Eleanor, determined to face whatever comes.
A woman enters the Blackwell manor, immediately confronted by another who questions her audacity. The woman asserts she is Howard's legally registered wife and declares she is there to claim her position and power. Howard arrives, confirms her status as his wife, and warns that disrespecting her means disobeying him. He orders the challenger to leave and grants his wife the master bedroom. Despite his support, a member of the household privately vows the newcomer will be tested and expelled within three months if she fails, while she confidently deflects further scorn from another resident, suggesting she is not an easy target.
On a windy night, a woman warns a man not to stand outside for her. The man, the apparent master of a manor, confronts her about the extent of his surveillance, referencing a visit from 'Dominic' and questioning her access to his bedroom. He dismisses his former assistant Scarlett as merely a coder, but a tense rivalry is revealed when he vows to ruin the one who built his empire. Simultaneously, a hidden system named 'Oracle' activates. The man then discovers the woman is running a dormant traceability virus within his manor's architecture, revealing she is far from ordinary and carries her own system. He demands she change into a gown, declaring they will crash a dinner party tonight to settle all debts.
Scarlet, a woman who has married into the powerful Blackwell family, arrives at a high-society banquet with her husband. She faces open scorn from other attendees, who mock her ordinary origins. One of them confronts her directly, belittling her dress and status. Her husband, Howard, intervenes forcefully, threatening the woman and having her escorted away. Meanwhile, Dominic, a rival, has hired mercenaries and plots revenge. Later, Howard gives Dominic's accomplice an access card and reveals their long-planned scheme: tomorrow night, they intend to completely destroy Scarlet.
A family meeting erupts as members object to an unidentified woman's presence in the manor, calling her a security risk. Meanwhile, Ian and three intruders attempt a hack using a stolen server room access card, believing they are sabotaging the manor's core system. Unbeknownst to them, the woman reveals she laid a trap, allowing their intrusion to expose their own criminal evidence. After her decisive countermove silences the opposition, her unseen adversary acknowledges the plan's ruin and decides to deploy a deadly asset named 'the Shadow' to eliminate both her and Howard.