Lee Ji-an knew exactly how the story was supposed to go.

As the supporting male lead, his role was simple: stay beside his frail childhood friend, quietly support her, and watch her fall in love with someone else.

After twenty years, that moment finally arrives.

"I think... I like Senior Yujin."

This time, Ji-an simply smiles, wishes her happiness, and walks away.

For the first time, he begins living for himself instead of the script written for him. Along the way, he finds himself crossing paths with the girls who were always meant to lose, the forgotten heroines left behind by the original story.

Meanwhile, the person who always assumed he'd never leave slowly begins to understand what his quiet devotion was worth.