Ep. 18: Prizmmy☆ and Puretty visit an island resort for a performance during summer vacation.

18

The groups Prizmmy☆ and Puretty travel to an island resort to stage a show. It is discovered that Jae Eun, Hye In, and Shi Yoon cannot swim, prompting Prizmmy☆ to provide them with swimming lessons. However, the situation becomes complicated when So Min reveals a fear of the sea, threatening to cause Puretty to cancel their concert. With encouragement from Yunsu and the rest of Puretty, So Min overcomes her anxiety and successfully performs their Prism show.