Always (2011)

Cheol-min (played by So Ji-sub) was originally an excellent boxer, but now he makes a living by delivering water during the day and watching watch at night. Cheol-min meets the beautiful and sunny girl Jinghua (played by Han Hyo-joo) on the first night of watching the watch. Unfortunately, Jinghua's eyesight is gradually declining and she will become blind if it continues. Silent Zhemin slowly beats up in front of Jinghua...