Inwoo’s Story

My name is Inwoo's mom, and I live in South Korea with my two sons. On February 22, 2026, our second son, Inwoo, was born. His older brother, Sion, was born in 2022. When Inwoo came into our lives, I imagined all the ordinary, beautiful moments that many parents dream of: watching my boys play together, hearing their laughter fill our home, and seeing them grow up side by side.

I never imagined that our family would soon begin a journey filled with so many unanswered questions. But looking back now, I realize that our story was never just about a diagnosis. It has always been about love.

As Inwoo grew, I began noticing that his development was different from other babies his age. He struggled to hold his head up, and his motor development was delayed. At first, I hoped he simply needed a little more time. But as the months passed, my concerns grew.

We visited hospitals, met with specialists, and underwent several examinations, including brain MRI and genetic testing. In November 2026, we received the results of his genetic test. Inwoo had a variant in the TUBB4A gene, c.785G>A (p.Arg262His). Until that moment, I had never even heard of TUBB4A. Suddenly, I found myself searching for information about an extremely rare genetic condition. I wanted answers.

Would my baby ever walk? Would he be able to speak? Would he be able to go to school? Would he live a happy life? But because this condition is so rare, there were very few answers. Perhaps the hardest part was not knowing what the future might hold.

Yet, while I was searching for answers about his future, Inwoo was quietly showing me something important. He was growing. Not at the same pace as other babies, but in his own way. He began holding his head up a little longer. He started supporting himself with his arms. He learned to reach for toys and bring them to his mouth. He began responding more to our voices and the people around him.

To someone else, these might seem like small milestones. But to me, they mean everything. Every little movement, every smile, and every new achievement reminds me that my son is still learning, trying, and growing. Inwoo's progress may be measured in small steps, but the joy those steps bring us is immeasurable.

There is something I have come to believe. Perhaps this little angel came into my life because I am someone who can find a way to keep going, even when life becomes difficult. I do not say this because I believe I am stronger than other mothers. There are days when I am frightened. There are nights when I cry. There are moments when I wonder whether I will be able to give both of my children everything they need. But every morning, I look at my sons and find another reason to keep moving forward.

One of my greatest hopes is that neither of my children will ever feel that their brother's existence has taken something away from their own happiness. I never want Sion to feel that he must sacrifice his childhood because his younger brother needs extra care. And I never want Inwoo to grow up feeling that he is a burden to his older brother. I want them to grow up knowing that they are not responsible for each other's happiness, but that they can become a beautiful part of it.

I want both of my sons to have their own dreams, their own opportunities, and their own happiness. Their lives may look different. Their paths may not always be easy. But neither child's life should be defined by the other's challenges.

As their mother, I have a dream. I want to become a big, strong tree for both of my sons: a tree that gives them shade when the world feels overwhelming, that they can lean against when they are tired, and with roots strong enough to support them but branches wide enough to let them grow in their own directions.

I cannot protect them from every hardship. I cannot promise that life will always be fair. But I can promise that they will always have a place where they are loved exactly as they are.

And there is something else I want to teach my children. There is something far more important than academic success, achievements, or reaching milestones on time. It is happiness. I want my children to understand that their worth is not measured by how quickly they learn, how well they perform, or how closely they resemble others. I want them to know that simply being themselves is enough to deserve love, respect, and joy.

Living in South Korea, finding information and support for TUBB4A-related conditions has been incredibly difficult. I have searched for families who understand our journey, for doctors who might have answers, and for research that might one day offer new possibilities. Sometimes, the distance between our country and the places where research is happening feels enormous. But connecting with families overseas has reminded me that love does not need a common language.

We may live in different countries. We may speak different languages. But we understand what it means to love a child whose future is uncertain.

I am sharing Inwoo's story because I hope that one day, no parent receiving this diagnosis will have to feel as lost as I did. I hope that more awareness will bring more research, more opportunities, and more understanding. And above all, I hope that the world will see children like Inwoo not only through the challenges they face, but through the beautiful lives they are living.

I do not know whether Inwoo will walk independently. I do not know what his future abilities will be. But I know that his life is already meaningful. He does not have to achieve something extraordinary to make me proud. He does not have to become someone different to make his life valuable. He is already enough. He is my son. He is Sion's little brother. And he is deeply, endlessly loved.

I hope that one day, when my boys are older, they will look back on their childhood and remember not only the difficulties we faced, but also the laughter, warmth, and love that filled our home. I hope they will remember a mother who may not have had all the answers, but who never stopped trying to give them a happy life.

I cannot choose the path my children will walk. But I can do everything in my power to make sure they never feel alone on that path. I don't need my two sons to walk the same path. I only hope that, wherever life takes them, having each other will always be something beautiful to remember.

This is our story. And it is only the beginning.

With love and hope,
Inwoo's Mom
South Korea