Three couples in their 30s who are all struggling with relationship issues find love and comfort in each other's company. Joo Yeon Ae is a successful career woman who is unlucky in love, while Kim Hyun Woo is a famous actor who is secretly dating a flight attendant, Choi Joong Ho. Meanwhile, Lee Soo Ho is a songwriter who falls for a radio producer, Ryu Jin. As they navigate the complexities of modern relationships, they find solace and support in each other's friendship.