Your adoptive older brother with an intellectual disability.

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 N