The witch family operates a historic hot spring in Beitou, where it is said that all illness can be cured by bathing in the waters. However, Qiqi, the heiress to the family business, dreams of leaving this place and her irritating grandmother behind.
When the swimming competition is coming, Wen is under lots of pressure, so it's gloomy this summer. Ann, who is inseparable beside her, found out something different. To confront Wen’s closure and trauma, Ann decides to be closer to Wen. But, when she gets closer to Wen once, it pushes them further.