My Brother in law - Yoonkook ff

Chapter 1

Jungkook was only 23 when he married Min Hyung-woo - a man six years older, ambitious but insecure, rich in pride but poor in love. It was a quiet wedding, no grand celebration, just papers signed and promises never made. Four years later, nothing had changed. No warmth had bloomed between them, only colder silences and empty nights in a mansion that echoed more than footsteps.

They had a child - a delicate little boy, six months old, who hadn't even started to crawl. His small world consisted of nursery walls, silent lullabies, and the gentle arms of a mother he never truly had - because Jungkook had to be everything. Mother, father, warmth, comfort, shield, and sun. Hyung-woo, despite being his biological father, had no space in his heart for the infant. To him, the child was a side effect of possession, not love.

And Jungkook? He hadn't stepped out of the mansion in four years.

Not once.

Hyung-woo had insisted on it. "No one needs to know what's inside my house," he had once said, eyes cold and final. And Jungkook, young and scared, had stayed silent - a bird in a cage made of marble and gold, barely remembering the world beyond the iron gates.

No one knew what really happened behind those tall mansion walls. Not even his older brother, Taehyung.

Taehyung, the adopted heir of Jeon Enterprises, was a force in the business world - sharp, successful, magnetic. He had married his long-time love and Jungkook's closest friend, Park Jimin, a few years ago. Their love was loud, radiant, and untouchable - the kind of love Jungkook sometimes dreamed about, during nights when the baby cried softly and he couldn't sleep.

Taehyung was close - heartbreakingly close - but still blind.

Not once had Jungkook told him the truth. Not about the lonely days, not about the bruises that weren't always on skin, not about how Hyung-woo never looked at their son with affection. Jungkook smiled during visits. He hugged his brother, laughed at Jimin's jokes, held the baby a little tighter, and said everything was fine. And Taehyung believed him - because Hyung-woo made sure Jungkook looked picture-perfect in front of others.

Hyung-woo had long since cut ties with the Min family. He didn't want anyone "interfering" in his personal matters, especially not his younger brother - Min Yoongi - a quiet yet commanding man who ran his empire with elegance and precision. Unlike Hyung-woo, Yoongi was respected, loved, and truly successful. But Hyung-woo resented that. He left the Min mansion years ago, dragging Jungkook into a life of isolation, far from his own family, far from Yoongi, and especially far from truth.

The irony? Taehyung and Min Yoongi were now close friends in the business world - both powerful, both clever. Yet even with that bond, no one ever connected the silent screams behind Jungkook's soft smile.

And so, day after day, Jungkook rocked his son gently in the silence of a mansion that smelled like perfume and prison. The baby, still too young to crawl, stared up with wide eyes, not yet knowing the world was supposed to be bigger, brighter, freer. Jungkook would hum, press a kiss to his soft forehead, and whisper stories of flowers, sunlight, and open skies.

Stories he could only imagine.

Because for four years, that's all Jungkook had - a dream of freedom, a quiet ache in his chest, and a tiny pair of eyes that gave him just enough strength to go on.

The room was dark, draped in velvet silence, broken only by the steady hum of the ceiling fan and the shallow breath of the man asleep behind him. Jungkook lay still, eyes wide open, body stiff beneath the warm weight of Hyung-woo's arm thrown lazily across his waist.

There was no tenderness in the way it rested there - only claim.

Jungkook waited a few minutes more, until Hyung-woo's breathing deepened into the unmistakable rhythm of deep sleep. Then, slowly, carefully, he reached down and peeled the man's hand off his skin. A quiet hiss escaped him as he moved - soreness radiating through his lower body - and he bit down hard on his lip, swallowing the sound.