Sometimes the way to find friends or love is the most unexpected and mostly we can't say in the beginning, if it's the right way or if we should stop going too far. So is it for Sanghyuk, who finally enters high school and has to face new challenges and problems.  Will he and his friends find the right  way to happiness?   "I think I made a mistake with you for my whole life. I just wasted my time to believe that you could feel the same way I do."