Song Anchen and Ye Yisheng grew up together as childhood friends, innocent and inseparable, secretly cherishing their feelings for each other. But after a family upheaval, Yisheng suddenly left without a word, as if she'd never been part of his life. Six years later, Ye Yisheng becomes a nurse and runs into Song Anchen, an oncological surgeon at the same hospital. Song Anchen has never gotten over Yisheng's sudden departure all those years ago. He deliberately pretends not to care, but feelings can't be hidden: even when you press your lips shut, they still shine through your eyes. When the misunderstanding between them is finally cleared up, they realize the feelings they'd kept to themselves have long since taken root deep in their hearts. Oncological surgeon Song Anchen × sweet, innocent nurse Ye Yisheng. Six years ago, a family upheaval made her leave home, and leave Song Anchen, who had loved her in silence. Six years later, he claims a kiss as the price for showing her the way, and she has nowhere to run. My secret love for you is what makes me feel so small...