79 episodes of Fate
Sanhoo and Kijun were drinking together, and the next day they left at the same time, but they met at the hospital, and both of them went to have hemorrhoid surgery, and they began to taunt each other.
Hyunjin not swimming, to urge the right to introduce a girlfriend to him, on the way to the date, the phone does not work, the watch is not right. He meets a little girl taking pictures and makes the date late by taking pictures for the little girl for two days in a row, and the little girl talks and acts like Yeonji. Ki-joon has a photo from when he enlisted in the army that Hyun-joon took when Yeon-ji was a child.
(PS: Didn't read the text? It's that Hyun-jin just walks down that stretch of road and travels back in time to the same time period when Yeon-ji was taking pictures as a child, until he gets the pictures done and he no longer wants to go on the date.)
80 episodes
Hyun-jin quits the swim team and is heavy-hearted. Shin-goo teaches him how to play Go. Every time Shin-goo starts to teach him, members of the swim team come to ask Hyun-jin to help out, either the principal is cradling the number of people to give out money or the school newspaper is coming to do a story. Hyun-jin secretly thinks that it's the last time he'll do anything for the swim team, but goes to fill up the number of people every day and doesn't actually leave the swim team. Hyun-jin was at home alone, watching a videotape of his previous swims.
Sang-ho buys a second-hand car that looks good on the surface but is actually full of problems. Hye-young and Sang-ho go to work and call Eul-dong when it breaks down on the way. Ki-joon hears this and goes to pick up Hye-young and confesses to her. Hye-young sees Sang-ho alone and gets out of the car to help Sang-ho push the car, and Sang-ho takes this opportunity to confess to Hye-young.
81 Episodes Old Woman's Woe
Hueiyoung told Suyoung that both Sang-ho and Ki-joon have feelings for her. Suyoung told Byung-jin that both of them think that Hye-young has been unattached for too long and has lost her balance. Byung-jin and Suyoung asked Sang-ho and Ki-joon about the situation, and both denied it. Byung-jin and Soo-young introduce Hye-young to a blind date. Sang-ho sees Hye-young's difficulty and comes forward to tell Byung-jin and Soo-young that he likes Hye-young very much.
Hyun-jin quits the swim team and wants to focus on his studies. He is short of notes for his exams and joins a study group, where Cheol-su and Choi-kwon don't get along, and it's a coincidence that both come to Hyun-jin's house. When the swimming team is playing basketball at the court, the study group comes out to steal the court. The swimming team and the study group plan to compete, but on the way, Seo-hyun gets injured, and Hyun-jin comes out to beg for a game, and the four of them declare that they will always be good brothers.
82 episodes of Brothers in Arms
Byung-jin tells Ki-joon that Hye-young rejected Sang-ho, and Ki-joon is secretly happy about it. Ki-joon and Sang-ho have a drink together and they both feel that there is no need to call each other brother and sister because of Hye-young's anger. The next day is Hye-young's birthday, Sang-ho and Ki-joon go to the movies and foot baths together, but both are thinking about Hye-young. Ki-joon sends a birthday text message to Hye-young, which is unfortunately sent to Sang-ho's cell phone, who steals Ki-joon's car and breaks down on the way. Hui-Ying texted Ki-Joon that he had something to say, Ki-Joon rushed to go, Hui-Ying only said that he wanted Ki-Joon to treat him.
Yeon-ji was in a bad mood because the whole family didn't have birthdays at Hye-young's age and she couldn't have one either. She went out to get drunk with her friends for a few days in a row, dreaming that she would go home at night and play drunk, but everyone told her she wasn't playing drunk. The last time, she gets drunk again and comes to the photo studio, hugs Hye-young and says that she liked Ki-joon ten years ago, much earlier than Hye-young, and wants Hye-young to let her have Ki-joon. The next day, Yeon-ji asks Hye-young if she's been acting drunk, and Hye-young denies it.