At the train station. A girl named Ha Na bumps into Seo Joon. She said Sorry in Japanese, but turned out to be korean she spoke korean to ger friends. Seo Joon as a pro photographer said to his assistant that he had never felt this way before after bumping into her, even with his history with girls. He started flirting with the model in Seo Joon’s car. He was talking about how he’s not serious about love due to bad experiences but also because he hasn’t found the right one yet. Then He leaned and was about to kiss her when a cute ringtone rang. The phone was in his pocket but didn’t belong to him. It was Hana’s. She was calling to get it back. He told her to come to the Resort. Seo Joon’s intimate time with the model was ruined again by his assistant, as the boss wanted a particular model with a particular photograph. Seo Joon got upset. Ha Na called again, but it was not a perfect timing for Seo Joon’s mood, but Ha Na needed her phone badly. Seo Joon was leaving the resort and gave the phone to his assistant. Ha Na was angry because she was already at the winter resort and decided to leave by herself by bus. Seo Joon’s assistant was laughing after checking the phone. “The girl is interesting” he said leaving Seo Joon with the phone. Seo Joon checked out the phone and saw a scary image out as soon as he opened it. Apparently Ha Na had many interesting photographs and there’s an interesting video “Diamond Snow” that caught Seo Joon’s attention. On their way to the hotel, Ha Na was almost hit by Seo Joon and his assistant’s car. Thinking she was Japanese, Seojoon was saying all this arrogant thing, making Hana very fonded. The assistant apologized, but She just headed to the hotel, and tried to call her phone. No response. Seo Joon and his team were partying in the town all night and made Ha Na wait at the hotel lobby. Ha Na decided to sneak in. After checking all rooms by calling her own phone, she finally heard her phone ringing from inside Seo Joon’s room. She Surprisignly, it wasn’t locked, so she got in. After having her phone again, she decides to get back at him. She wrote something on the bathroom mirror with a lipstic. But as she was leaving, Seo Joon was coming with the model. They all fell on the bed, but things were all over it. One of the models joked saying that it must be her boyfriend’s doing. Seo Joon instantly felt a resentment towards her. He went to the bathroon but ends up finding Ha Na. She tries to explain but they end up fighting. Seo Joon takes her away and her phone. Ha Na was willing to do anything to get it back. So Seo Joon, who asks about the diamond snow video location. Ha Na takes him there but it was closed. She said she came in the morning the other day. They slept over in the car. In the morning, Seo Joon made Ha Na accompany him to the exact location of the snow by threatening to throw her phone away. Ha Na asked if he wouldn’t be cold with such unapropriate clothes. Seo Joon boasted that it’s expensive clothes. But during the hike, he kept complaining because it was too cold for him. When they reached the location, Ha Na said they should wait for two hours to get the perfect mood. As it was getting colder, Seo joon asked Hana to warm up his hand. Ha Na “hating it” inserts it into her pocket. Ha Na later was talking about the legend of watching the Diamond snow. If two people who like each other watch it together,their love would bloom. “Then shall we?” asked Seo Joon. “No way!” said Ha Na. Somehow as they’re quarreling, he falls and needs her help. But Hana then demanded her phone in exchange for that. She gets it and Runs! While he was trying to get himself out, the diamond snow starting. He instantly forgets about his anger and starts taking picture. But he caught Ha Na enjoying the snow and takes photos of her too.. Seo Joon’s condition was bad as they got into the car. He was trembling very badly that Ha Na had to drive the car. Suddenly the car stopped in the middle of nowhere because the gas was empty. While Seo joon was making a phonecall, Ha Na saw a sign board of a natural hot spring. Seo Joon’s assistant was still sleeping when Seo Joon’s father called. After talking to Seo Joon’s father, it was Seo Joon’s phone call turn to tell his assistant his whereabout. Ha Na and Seo Joon found the natural hot spring. Seo Joon still had Ha Na’s phone to make her stay. When Seo Joon was taking pictures, Ha Na tried to reach out to her phone but she gets caught by him. Startled, She fell into the water. Away, Seo In Ha was holding a press conference in Japan. His assistant said there’re Korean exchange student who would like to give him some questions. Seo Joon said he didn’t believe in love, because his father’s first love was bad & he ended up married to someone else. But he still wanted to know if there’s such a thing as falling in love in 3 seconds. He looked at Ha Na deeply and counted 1 2 3. Then Ha Na also talked about her mother’s first love that even though it didn’t work out, her mother was still happy to have experienced that. She wanted to experience such love, too. This time it was Ha Na who was counting 1 2 3 while looking at Seo Joon. However, Seo Joon felt weird. He suddenly hugged Ha Na, saying “just for a moment, only just for a moment” But Ha Na pushed him away. Seo Joon still slowly leaned towards and is about to kiss!