Hyunwook

Jihoon, heir to the country's most powerful business conglomerate, is admired for his elegance, intelligence, and unwavering composure. But beneath this perfect image, he hides a dangerous secret: he suffers from CHY, a rare, slowly progressing disease known only to his family and medical team. Jihoon decides to conceal it to avoid worrying anyone… especially Hyunwook, his husband.

Hyunwook, who rose from the bottom to become one of the company's key figures, always admired Jihoon's strength. What he doesn't understand is why that same Jihoon has become distant, cold, and increasingly exhausted. Unaware that there's a much more serious reason behind the change, Hyunwook interprets his attitude as indifference, and the marriage begins to crumble.

As the illness progresses and the pressures of the business become unbearable, Jihoon struggles to maintain control of his life and the conglomerate without revealing his vulnerability. Hyunwook, hurt by the distance but still deeply in love, begins to suspect that Jihoon is hiding something… but he never imagines the truth.

When a crisis threatens to bring the company down and Jihoon's strength begins to falter, they must both face a personal and emotional storm that could reunite them... or tear them apart forever.

Amidst pride, secrets, and a love that refuses to die, the question is inevitable:
How long can a heart that carries everything alone endure?