The Quintuplet Alliance

Episode 1

Lydia Snow's own family turns on her. Her sister Suyue admits to setting up a celebration banquet, getting Lydia drunk, and trying to deliver her to a client — only for Lydia to slip away. "Did I send her to the wrong room?" Suyue fumes, while their father promises a wealthy boss that he will put Lydia in his bed. Cornered, Lydia protests that she is his daughter. Meanwhile, a stranger promises to take responsibility for her. It's the setup that changes everything: one night, no names, no idea who she really is.

Episode 2

Lydia confronts the family that discarded her. Suyue feigns shock at finding her there; Lydia fires back, asking why her mother died in a psychiatric hospital and why every design she made for the company was credited to Suyue. Her father's answer is violence, and Suyue has to stop him — not out of mercy, but because a bruised face would displease the client. He taunts Lydia that she'll never learn the truth about her mother's death. Suyue decides they'll send her away again. But word spreads that the richest family in Haicheng is closing in.

Episode 3

The man from that night resurfaces — and he's no stranger to Lydia's family. Suyue spots Lydia's necklace in his hands and instantly guesses the truth: the powerful man spent the night with the sister she despises. Rather than panic, Suyue gloats that Lydia's luck belongs to her now. An enormous sum — a billion in assets — is offered and refused; Lydia says she wants nothing but to stay by his side. Then Suyue's own plans shift into motion, with hushed orders to move fast and clean. Someone is being dealt with.

Episode 4

Lydia gives birth — five babies at once, a delivery that breaks the record. Years pass. A genius designer returns home, rumored to be courted by a major group with an 80-million salary. The children are already scheming, teasing their mother to keep a low profile. News breaks that Suyue is about to get engaged into a powerful family. Lydia's answer is quiet and cold: she's back, and marrying into wealth won't be so easy. Then one of the kids races off — "I finally found you" — heading straight toward the man at the center of it all.

Episode 5

The child marches up to Theo Locke and declares he's found his daddy — no mistaking it, since "you're this handsome and Mommy's that beautiful." Theo gently insists the boy has the wrong person, but the kid is undeterred. Lydia rushes over, apologizing for her son's boldness and calling it childish nonsense. As she turns to leave, Theo stops her: haven't they met before? She denies it flatly. The boy promises they'll meet again. And Theo can't shake a strange ache as the little family walks away.

Episode 6

Theo can't explain why watching the child leave unsettles him. At home, the kids push their mother about their father; she deflects, but they're seven now and far too sharp to be fooled. An ally tells Lydia that Suyue used her design years ago to build her name, and that Suyue's recent work is ghostwritten. Evidence is gathered, though the truth of Lydia's mother's death remains unresolved. Lydia vows she has all the time in the world to play with Suyue. Then she takes the 80-million offer, and the game truly begins.

Episode 7

The children have done their homework: the man marrying Suyue looks strikingly like them, and they're convinced he's their father. So they strike — replacing every security system in his company. Suyue shows up at the office with dinner, and he coldly tells her to leave. Seven years on, he still won't touch her, and she's running out of patience. She warns him not to come to the company again unless it's important. But the children's trap is already set, and the fallout is about to land.

Episode 8

The company is paralyzed — every computer down, millions lost in minutes. The attackers left a message: "You're his stinky daddy." Theo refuses to believe it; Lydia hasn't surfaced in years, and he insists there can't be a child. Suyue scrambles to spin it as a rival company's scare tactic, but the numbers keep bleeding. His own technicians can't crack the intruders. Frustrated, Theo decides to stop guessing and go find whoever is playing games with him — unaware the trail leads exactly where he least expects.

Episode 9

The losses climb toward 80 million, and Theo still can't find the culprit. The hackers' terms are simple: cancel the engagement, or they'll bankrupt him. At home, the kids eat breakfast while their mother heads out, leaving them with a sitter — though one insists he can look after himself. The moment she's gone, the siblings snap into action, checking in with each other on the plan. They've found their target at last, and they're not about to let their mother walk into it alone.

Episode 10

Theo's team traces the breach to an unlikely place — the very venue of his engagement party. His newly hired designer is already on-site, so he heads over to see what's really going on. There, Suyue basks in congratulations, smug about the famous designer attending her wedding. The guests mock Lydia, sneering that she ran off with some stranger and shamed the family name. The laughter doesn't last. Someone steps forward — and the room is about to learn exactly who's been pulling the strings.

Theo has no idea the family he's hunting is the family he's about to meet — start watching and see how long he can keep denying it.