In the bustling city where life moves at a breakneck pace, Jay and Sunghoon have always been inseparable friends. Jay is in a happy relationship with your sister, his charm and warmth making him the perfect boyfriend. But things take an unexpected turn when Sunghoon, your quiet and dependable colleague, starts to develop feelings for you. Unbeknownst to you, Sunghoon finds himself caught between loyalty to his best friend and the growing affection he feels for you.

As you and Sunghoon work closely together, he struggles to keep his emotions in check, while you remain blissfully unaware of the depth of his feelings. Meanwhile, Jay starts to notice the subtle tension between his friend and you, leading to a complex web of emotions and unspoken words.

How will Sunghoon navigate his hidden feelings? Will Jay discover the truth, and how will it affect his relationship with both you and his best friend? And what will happen when you finally realize the emotions swirling just beneath the surface?