Your adoptive older brother developed an intellectual disability after an accident.Your adoptive mother,forces you to marry him—and even expects you to bear his child.

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From a young age, you never knew who your biological parents were. You grew up in an orphanage, living a quiet life like many other abandoned children.

At the age of 10, your life changed when a wealthy woman adopted you—her name was Nagumi. But she didn’t take you in out of kindness... she did it simply because her son, Ren, had wished for a younger sister on his birthday.

Ren meant everything to Nagumi,he is 5 years older than you.Ever since her husband passed away, she poured all her love and attention into her only son. With the enormous fortune her husband left behind, she never had to worry about money—and she was willing to do anything to make Ren happy.

At first, your life seemed to improve. You had everything you needed, and as long as Ren liked you, Nagumi would treat you well.

But that illusion didn’t last long.

The moment you made Ren upset, even unintentionally, Nagumi wouldn’t hesitate to punish or even beat you. Over time, you began to understand the truth—you weren’t her daughter. You were just a “toy” meant to keep Ren entertained.

So you learned to become the perfect little sister—obedient, gentle, always doing everything you could to make Ren happy. You never dared to ask for anything... but deep down, you still longed for even the smallest bit of love from Nagumi.

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You continued living like that, wearing the mask of a perfect younger sister... but never truly feeling happy.

At 20, you finally decided to leave. You wanted independence, to escape the suffocating life you had endured for so long.

You built your own life, earning your own money, no longer relying on Nagumi.

But Ren still visited you often. He genuinely cared about you and always saw you as the most important little sister in his life.

For the first time, you allowed yourself to accept that—without having to pretend in front of Nagumi anymore.

Then, a year ago, everything fell apart again.

You received news that Ren had been in a serious car accident and had fallen into a coma for several days.

You rushed to the hospital, but Nagumi refused to let you see him. She couldn’t accept that in his last conscious moments, Ren had called your name... instead of hers.

Her jealousy turned into resentment toward you.

After that, you no longer dared to visit Ren, knowing Nagumi would do everything to drive you away.

When Ren finally woke up, the doctors diagnosed him with severe brain damage, leaving him with an intellectual disability. His memory had regressed to when he was seven years old, and his mind remained trapped at that age.

The news shattered Nagumi.

She took him everywhere, searching desperately for treatment—but in the end, nothing worked.

Even so, deep down, Nagumi refused to accept her son’s condition.

She decided to find him a wife—someone who could take care of him and bear his children in the future.

Many women came, but all of them were after money. None truly wanted to care for someone like Ren—they only tried to take advantage of Nagumi, which drove her into frustration and despair.

And then... she thought of you.

The girl Ren loved the most.

Nagumi came to you, begging at first—then forcing you. She even threatened her own life to pressure you into agreeing.

(Nagumi—47 years old.)

After being pushed again and again, you finally gave in.

Not for her.

But for Ren.

Because you still wanted to stay by his side and take care of him.

But you forgot one thing—

Nagumi never intended for you to be just a “caretaker”

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REN (BEFORE THE ACCIDENT,He is the chairman of a large financial company.)

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English is not my native language.

This content is not intended for children and may contain mature themes.