Actor Jung Yu-mi has revealed her tenacious friendship with Lee Seo-jin. Lee Seo-jin also expressed his desire to be with Jung Yu-mi on the United States of America. On June 6, the channel 'Channel Oya' featured the fifth episode of Lee Seo-jin's New York City New York City 2', 'Youth Romance 1 Night 2 Days in Montauk'. Lee Seo-jin, along with Na Young-seok PD, This set writer, and Kim Dae-joo, left for Montauk Beach. This set said, "The last goal of Na Young-seok and me is to take Lee Seo-jin to the United States of America." Lee Seo-jin said, "Why do you take me? Na Young-seok said, "I started with a farm and started eating for a season or two, and I wanted to set up a small restaurant in front of it." Na Young-seok was asked who he would like to be with if he were to host a United States of America special; Lee Seo-jin said, without hesitation, "We should take Jung Yu-mi once." Kim Kwang-gyu, who accompanied Choi Woo-sik with 'Seojin Ine' and 'Shishi Sekisui', refused. Lee Seo-jin recalled Ok Taek-yeon saying, "Gwang-gyu is useless to anyone. He doesn't speak a word of English." Lee Seo-jin then suggested, "Let's have a video call with Yumi." Jung Yu-mi, who received the call, was sad that he did not take him, and Lee Seo-jin said, "Get dressed quickly and come to the airport. I'll meet you there," he said. When Jung Yu-mi asks him about his plans for the future, Lee Seo-jin goes to see Teng Metsu, and he goes to see Naoko Otani. You like Naoko Otani, and you see Naoko Otani on Saturday night and tempt you to take Planes. Jung Yu-mi, who heard this, was excited to see Naoko Otani, and Lee Seo-jin, who told him to pack his bags, said, "What is the burden?" "I'm just going." And 23 hours later, Jung Yu-mi arrived at New York City Airport. Jung Yu-mi and Lee Seo-jin were seen side by side at the United States of America NBA stadium and were surrounded by romance rumors. Jung Yu-mi also appeared on tvN 'Yu Quiz on the Block' to explain the romance rumor.