Please tell me (2016)

In the year 2006, Yumi develops a crush on a video store clerk, Ji-hwan, who can't speak. As they get closer to each other, one day, Yumi has to move to a different city. She confesses her true feelings for him but receives no answer from Ji-hwan. Five years later, we meet Yumi, and she's slowly losing her sight. She decides to embark on the journey to see him before it's too late.