Hu Xiaoxiao was diagnosed with advanced pancreatic cancer and only had a few months left to live. She chose to conceal her condition and spend her last moments protecting her lover Lin Zichen. She concealed her illness with a smile, weaved tenderness with lies, and swallowed all her tears into the bathroom late at night. When life comes to an end, what she leaves behind is not regrets, but letters and videos teaching him how to live well with her love.