Gasp! A Swimming Contest Filled with Girls! / Flex! A Muscle Contest Filled with Bros! / Earthenware! An Excavation Contest Filled with Jomon Pottery!

As a reward for winning the tournament, the Reject Five get tickets to go to Aqua Galaxy, an indoor pool and themepark. Everyone except for Furano, who doesn't want to wear a bathing suit because of her small chest, head to Aqua Galaxy and Kanade is hit with another mission.