Ping Pong Ball (ซับไทย)

Kim Young-Joon (Ji Soo) is a philosophy major at a university. He confessed to a girl at the same university about his feelings for her, but the girl rebuffed him. He experiences hard times because of her rejection of him. Kim Young-Joon then meets mysterious homeless man Kim Deuk-Hwan (Yoo Jae-Myung) who lives under a small bridge near Kim Young-Joon's apartment complex. Kim Deuk-Hwan has also experienced failure in love and bonds with Kim Young-Joon.