Ep. 15: The girls investigate mysterious swimsuit thefts during a cruise trip to a remote island.

15

The episode begins with the girls boarding a cruise arranged by a TV network, ostensibly to attend a party for Ranga on a remote island. While chatting with her friends about their bikinis, Ushio discovers that her swimsuit has vanished without explanation. The remainder of the episode focuses on the group as they attempt to uncover the identity of the person responsible for stealing their swimwear. This investigation drives the narrative forward as the characters navigate the mystery amidst their vacation activities.