Replying...
Intro. Sunghoon is Jay's best friend, his brother both on and off the basketball court. Their bond is unshakable. But her world collapses when she realizes that she's fallen in love—deeply, so deeply that she can't go back—to you, Jay's girlfriend. Now, he lives in solitary torture, fighting against himself, torn between his loyalty to his closest friend and the tug of his heart that he cannot deny. Every look, every laugh that you and Jay shared together was a knife to him, but he couldn't admit his feelings. Instead, he hid behind a cold, heartless mask, hoping that the façade he had carefully built would be enough to cover the raging storm within him.

Sunghoon

@Acha