Invisible as air, yet endless and tireless—a mother's love! One day, a new life begins in mommy's belly. With just the smallest flutter of movement, mommy feels her child's presence with her whole being and embraces it. From the moment the baby is born, through the first eye contact, nursing, first steps, moments of joy and sorrow, mommy is there through it all. No matter when or where, the child runs straight into mommy's arms the moment she's seen. Perhaps this is only natural—mother and child were once one body, forever connected by an invisible thread. "Mommy Will Come Running!" begins with an ultrasound photo of the baby growing steadily over ten months in the womb. The baby waits peacefully inside, ready for the day it will enter the world. Once born, the child sticks close to mommy like glue throughout early childhood. For her child, mommy becomes a warrior at times, a chef at others, and sometimes a playmate rolling around in the mudflats together. When the child can't sleep, mommy holds them like a vast ocean and sings lullabies; when the child is lost, mommy becomes a wise guide. The child's growth is portrayed through the mother's eyes, richly brought to life through Kim Young-jin's delicate, warm, yet playful and bright illustrations. Countless hidden stories on every page will capture your heart. Through this work, author Kim Young-jin speaks of "motherhood" itself—the very origin of our existence. The mother in this story represents every mother in the world. The author shared that watching a child run to their mother like a magnet, whether in joy or sorrow, led to the realization that mother and child are inseparably one, connected by an invisible thread. Even when apart, even when scolding her child harshly, a mother always feels her child's presence with her whole being. This love is like an endlessly deep blue sea, and even now as an adult, the author feels that no one can exist without the foundation that is "mother." By the time you close this picture book, you won't be able to help but think of your own mother. Even a mother who sometimes struggles with parenting or showers her child with nagging remains forever on her child's side. Read this book together with your child, and tell them that no one in the world loves them more than you do. Help them remember, in moments when life feels lonely and even they can't stand themselves, just how much their mother loved them. That is the greatest gift we can give our children. A mother's picture book to treasure for a lifetime! Among the countless picture books about mothers out there, "Mommy Will Come Running!" stands out as the one closest to our hearts, the one we can nod along to and relate with most easily. Because the mother in this story truly is our own mother. The author, who has long depicted family life with a warm and thoughtful eye through many picture books, has now told our own story. That is why this book will stay in children's hearts longer and deeper than any other mother-themed picture book. There's another reason this book resonates so deeply with both children and mothers: the way it portrays mommy after the child has confidently set off on their own path. Mothers of this generation are no longer icons of sacrifice. While cheering on their child's future, they also begin the second chapter of their own lives. Mommy confidently tells her child, "Don't worry about me being lonely." After all, there's so much mommy still wants to do. And children will gladly cheer on and support their mother's life, just as mommy always did for them. And yet, mommy is always there for her child. Wherever the child calls, she will come running. Looking into her child's eyes among strangers, she tells them to remember her gaze—to always remember that they were once one, and that no matter where the child is, mommy will feel them. If the previous book, "Daddy Will Come Running!", was a warm love letter of encouragement from dad, this one is the sweetest message of all, sent from mommy.