Oops! I'm the Heiress

Episode 1

Isabella's night starts with a favor she can't refuse. Her coworker Julia is desperate — a family emergency, no one else to cover the shift at the lotus clubhouse, and a threat of getting fired hanging over her head. Isabella agrees, even though she's broke and can't afford to lose the job either.

Then a stranger collapses in front of her, gasping for water. She helps him — and can't help noticing he's strikingly handsome. But before anything can come of it, someone is already shouting after her, demanding she come back. Who is this girl, and why is a stranger suddenly calling after her? The night isn't over yet.

Episode 2

Back home, Isabella begs Karen to let her stop livestreaming — she's uncomfortable on camera. Karen's answer is brutal: stop making excuses, you're lazy, and you owe us for raising you. So Isabella buckles up and goes live anyway, forcing a smile for strangers.

Meanwhile, someone orders his people to find that girl as soon as possible. Then a knock changes everything: Keith, housekeeper to Amelia Parker, arrives with an invitation. Mrs. Parker believes Isabella is her long-lost daughter. Isabella has no idea what she's walking into — or why a pharmaceutical empire's CEO would ever mistake her for family.

Episode 3

Standing before Amelia Parker, Isabella tries to protest that there's been a mistake. But Amelia won't hear it. She's finally found her daughter, she says, and presents a necklace made as their special token — proof she's held onto for years, certain the girl was gone.

Isabella's heart sinks. She knows the necklace isn't hers. Yet she can't bring herself to ruin this moment, and decides to explain later.

Then Ruby arrives from a vacation, assuming the newcomer is just the new maid. Amelia corrects her: this is Isabella, my biological daughter, lost for decades and now finally home. Ruby's reaction is a smile.

Episode 4

Amelia fills Ruby in on the family history: Isabella was lost at three, two years older than Ruby, her big sister. Ruby plays the part beautifully — "Sis, I'm so glad you're back." Amelia makes clear she loves Ruby just as much as Isabella and hopes the two will love each other like real sisters.

Amelia showers Isabella with gifts, ordering Keith to replace anything she doesn't like, vowing never to leave her again. Ruby offers to show her around. The warmth feels genuine — until you notice how smoothly Ruby volunteers to take "wonderful care" of her new sister. Isabella has no idea what's waiting in the kitchen.

Episode 5

Ruby leads Isabella to the kitchen and pours her a glass of fresh kiwi juice. Isabella politely declines — she needs to grab her things. Ruby pushes: just kiwi juice, it'll make you feel better. Isabella says she's allergic. Ruby keeps pressing anyway.

Then Amelia walks in and stops it cold — Ruby, don't you remember your father and I are allergic? Isabella could be too. Ruby instantly crumples into apology, playing the wounded adopted one: "I guess I just forgot. After all, I am the adopted one."

Amelia soothes her, calling her a good girl. But Isabella knows the truth: Evelyn's warning saved her. Ruby's trap failed — this time. She's more dangerous than she lets on, and Isabella resolves to watch her back.

Episode 6

Isabella speaks to the friend she lost. This is the last thing my mother left me, she says — help me find my biological mother, it's my last wish. Then, softly, to Evelyn: I finally did it. I found your real mom, just like I promised you.

The necklace, the reunion, the heiress's welcome — none of it was ever Isabella's. She stepped into her late best friend's place to fulfill a dying wish, and Amelia still doesn't know the daughter she's welcoming isn't hers. How long can Isabella keep the secret before Ruby — or the truth — catches up with her?