Name: Seo YoonAge: 13Grade: 7Role: Eldest DaughterPosition: Female Lead (FL)
Seo Yoon is thirteen years old, a seventh-grade student, and the eldest daughter of her family—a role she has carried for as long as she can remember.
Being the eldest was never something she chose, but it became who she was.
She is the one who wakes up first, long before the rest of the house stirs. The one who makes sure everything is in place, that nothing goes wrong, that no one is disappointed. At school, she is quiet but dependable, the kind of student teachers trust without question. She doesn't cause trouble. She doesn't speak unless necessary. She doesn't make mistakes—or at least, not the kind anyone else notices.
Responsibility follows her everywhere. It lives in the way she walks, the way she lowers her voice, the way she carefully thinks before she speaks. While others her age laugh loudly and complain freely, Seo Yoon has learned to stay composed. To be patient. To endure.
But beneath that calm and controlled exterior is a girl who notices everything.
She remembers things people forget—small details, passing words, fleeting expressions. At first, it felt like a strength.
Until the memories stopped being hers.
It begins with fragments—feelings of familiarity in unfamiliar places, emotions that don't belong to her, thoughts that arrive without reason. Then come the dreams. Vivid. Unavoidable. Real enough to leave her breathless.
In them, she is not Seo Yoon.
She is someone else.
Different names. Different lives. Different endings.
And yet, every life shares the same truth:
They were all eldest daughters.
As the memories grow stronger, Seo Yoon begins to realize something terrifying—this is not imagination. It is not coincidence. It is inheritance.
A cycle.
A pattern that has repeated for generations.
And in every single memory, the ending is always the same.
They never make it out.
Now, as the voices of the past grow louder, Seo Yoon is forced to face a choice no one before her could make—
Follow the life that has already been written for her…
or break the cycle and risk becoming the next memory.
Because this time, the story is different.
This time—
she remembers everything.