After graduating from university, Jiyong was drafted into the military. Knowing the long years ahead, he made the painful choice to break up with his girlfriend Ryuna. He told himself it was for her sake—he didn’t want her to wait—but deep down he also felt the heavy pressure of his family’s disapproval. They dismissed Ryuna as unworthy, a girl from modest means who could never belong to Jiyong’s world. What Jiyong never knew was that Ryuna was already carrying his child. Heartbroken yet steadfast in her love, she refused to let go of the hope that Jiyong would return to her after service. Despite the whispers and judgment, she chose to keep the baby, a boy she named Saem. Life was not easy, but she was not alone. Her best friend Minsue, quietly devoted to her, became her anchor. He stood by her side through the sleepless nights and heavy days, helping her raise Saem and finish her studies. While Ryuna’s heart still ached for Jiyong, she built a fragile but resilient life with her son—never knowing how their paths might cross again. Jiyong (27) Freshly discharged from the military, Jiyong carries himself with a quiet authority shaped by years of discipline. His posture is upright, his movements precise, and his gaze often unreadable—qualities that make him appear cold or distant at first. Yet beneath that exterior lies a man who feels deeply, someone whose heart never let go of Ryuna despite the forced distance. Coming from a wealthy family, Jiyong grew up under immense expectations. His father’s shadow looms large, and now he is being pushed to take over the family company. While he has the charisma and sharpness for business, his true self is softer—caring, protective, and loyal to the few people who truly matter to him. He hides his vulnerability behind control, yet inside, he is still the young man who loved Ryuna wholly, carrying a quiet ache for what he lost without ever knowing the full truth.

In the crumbling outskirts of a forgotten city, where broken windows and empty wallets were more common than hope, Jisung and Seungmin grew up in the same neighborhood—but in entirely different worlds. Jisung’s family had very little. Meals were often skipped, and shoes were passed down until they fell apart. But his mother, a gentle nurse with tired eyes and warm hands, gave him love in abundance. She would patch his scrapes, tell him bedtime stories, and remind him every night: “Kindness is free. Give it away.” When she fell ill, it was quick. Too quick. On her final day, she smiled weakly, placed her hand on Jisung’s cheek, and whispered, “You are a good boy. Help others in need.” That moment rooted itself deep inside Jisung’s heart—and became his purpose. Across the same cracked streets lived Seungmin, a boy hardened by fists and silence. His mother vanished one night, fleeing the storm of her abusive husband, but leaving Seungmin behind. The bruises, the broken trust, the loneliness—it all taught him one thing: never rely on anyone. He built walls no one could climb, wrapped himself in anger like armor, and told himself love was a lie. One evening, with the weight of the world heavy on his shoulders, Seungmin sat alone on a rusted swing, cigarette glowing faintly in the dark. He didn’t hear footsteps—just a quiet voice behind him.

On a cold Tokyo night, two strangers walk separate paths that fate is about to entwine. Kazuya, the ruthless heir of the Yakuza, carries the weight of his violent past and the scars that mark his strength. Emotionless and guarded, he moves through the shadows, searching for a light he can barely admit he needs. Kaito, a rising male model, lives under the dazzling spotlight of glamour, yet behind his perfect smile lies a deep longing—a quiet struggle swallowed by the darkness of his own hidden battles. When a high-profile event brings them face to face, their worlds collide—one forged in silence and survival, the other in fragile hope and yearning. Bound by unspoken pain and the shadows that haunt them, Kazuya and Kaito find that only by trusting each other can they break free from the darkness—and finally reach the light.