Actor Ahn Eun-jin captivated viewers with his bold and deep Hot Summer Days. Ahn Eun-jin plays the role of Heroine Ahn Eun-jin in the MBC gold soil drama ⁇ Couple ⁇ which is aired every Friday and Saturday, and is playing Hot Summer Days. Yoo Gil-chae was a fine-grown Ae-ssi, but she is a person who grows up to be a subjective and strong GLOW while experiencing a sick man Horan and true love. Ahn Eun-jin shows a melancholy melody to a strong and strong vitality and raises the immersion of the drama. In the 14th episode of ⁇ Couple ⁇ broadcasted on October 21, Yu Gil-chae's strong and independent aspect shined even in the face of severe trials. Especially, all of this can not be taken out, but it was for Jang Hyun (Namgoong Min), who loved him with all his heart, so he was able to draw more empathy from viewers. Yu Gil-chae faced Lee Jang Hyun at the Prisoner of war market auction house. I do not want to show the gruesome Jasin, nor do I want Jang Hyun to be harmed by Jasin. It was Yu Gil-chae who had never asked Jang Hyun for help. THerefore, Her had no choice but to shed tears when she saw this screaming Jang Hyun. "Yu Gil-chae then pushed Jang Hyun out with hard words. The same was true when he was taken to the Prisoner of war by the Qing dynasty princess keratinization. Yu Gil-chae knew that keratinization had a heart for Jang Hyun, and even though he was whipped, he told Jang Hyun not to do anything for Jasin because Jasin was comfortable. And he said he would stand in front of the Qing dynasty emperor hong taiji (Kim Jun-won) to defend this Jang Hyun. Her, in front of hong taiji, said in Manchu that Jasin was kidnapped, not a Prisoner of war, and that many Korean GLOW were being persecuted unfairly. When keratinization asked about this and that, it was a moment when Yu Gil-chae's face was outstanding. After that, Yu Gil-chae left for Joseon under the order of keratinization, but keratinization asked Yu Gil-chae to leave for Joseon without meeting Lee Jang Hyun. I wanted to see this Jang Hyun, but Yu Gil-chae, who thought that it was for Jang Hyun to just turn around, decided to turn around, but this was a trap set by keratinization. In the end, Jang Hyun risked his life to protect Yu Gil-chae. When he saw Jang Hyun, who fell down with an arrow for Jasin, Yu Gil-chae sobbed. And Her stood up loudly against keratinization. Yu Gil-chae could have killed Yu Gil-chae at any moment, but Yu Gil-chae was no longer afraid for Jang Hyun's life. At the end of the broadcast, Yu Gil-chae was able to leave for Joseon. It was a tearful mixture of gratitude, sorry, and love for this Jang Hyun. I wondered if Yu Gil-chae could return to Chosun and what would happen to the love that does not reach Jang Hyun. Ahn Eun-jin leads the ⁇ Couple ⁇ with Namgoong Min, the male character, with a wide range of expressiveness and excellent character digestion. In the melodic line that encompasses the entire play, the audience's heart is filled with sad feelings with delicate and deep emotional acting. When Yu Gil-chae shows his subjective and confident appearance, he fills the screen with extraordinary concentration and presence. This is why many viewers love and support Yu Gil-chae in ⁇ Couple ⁇ .