At 32, Sera Song has always been able to win over any man she desired—until she meets Cha Geum Kwang. Once her brother's friend, Kwang has transformed into a strikingly handsome CEO, but for some reason, his favorability towards Sera remains stagnant. After leaving her previous job due to financial struggles, she joins Kwang's gaming company, where she discovers a unique app that reveals the love favorability of those around her. Determined to win his heart, Sera is perplexed by the app's readings.

"What’s holding Kwang back? How can I increase his favorability?" As she navigates this unexpected challenge, Sera embarks on a journey of self-discovery and strategic charm, unraveling the complexities of love and attraction. Will she find the key to unlock Kwang’s heart?