Days of Wrath (2013)

In high school, Chang-Sik bullied Jun-Suk relentlessly and this even causes Jun-Suk’s girlfriend to commit suicide. After 15 years, one day, the two with this history bumps into each other. Chang-Sik is getting ready for his wedding while working for a conglomerate. On the other hand, Jun-Suk is working at a convenience store having difficult time getting a decent job even though graduated from a prestigious university because of his abnormal school years. Jun-Suk never forgets about their past and plans for a revenge to bring back those memories to Chang-Sik.