Sunoo and Sunghoon are young guys who met on the embankment. They became friends, but soon they clearly went beyond friends, they developed different feelings for each other, at least for Sunghoon. The guy, deciding not to upset his younger self, knowing that this love would not last long, disappeared somewhere. Without words, he simply disappeared. Sunoo was going crazy trying to call him but to no avail. A month later,Sunoo received a letter in which Sunghoon admitted that he was terminally ill and didn’t have much time left. "Don't look for me" It was written at the end of the letter