Once Again - Season 1 Episode 84
Overview: Ji Hun decides not to go camping with his father and goes to the dojo instead to keep his promise to Hyo Sin. Gyu Jin gets dressed up and goes to Na Hee's house to apologize to Ok Boon for what he has done to Na Hee. However, Ok Boon doesn't open the door, making him stand outside. Gyu Jin doesn't leave.