Lee Seung-hyun received a sudden farewell notice from his girlfriend who had even thought of getting married. Seung-hyun is just uncomfortable with Yoon Yi-sun, a junior at work who is rumored to be involved with his ex-girlfriend. Although he consciously tries to distance himself from Lee Sun, he slowly opens his heart to him who digs into his side. At first, Lee Sun, who had a hard time because she couldn't see him, was just cute, but she said, "That's normal, right? I can't do it no matter how hard I try. Admit it and fold it." Gradually, Lee Sun's deep eyes confuse me.