Hyeon-woo loves Seo-yeon for a long time and has been confessing his feelings constantly, but Seo-yeon refuses Hyeon-woo every time. Bo-ram and Min-jae always come together and drink together whenever Hyun-woo is dumped. However, Min-jae hides his relationship with Seo-yeon to Hyeon-woo. Min-jar tells Seo-yeon to stop teasing Hyeon-woo but Seo-yeon just enjoys the situation. Bo-ram who used to like her childhood friend Hyeon-woo, holds a special class to boost his confidence. He has become depressed after being dumped by Seo-yeon. Hyeon-woo is thankful for meeting Seo-yeon because of her. Only after some time did each of them know their real feelings. If you don’t get married when you turn 40, marry me! The story of childhood friends to not lose a friend has just begun.