Okarun and the girls try to clean up some misunderstandings with their classmates. Later, the aquatic creature reappears before Momo and Aira.

Cast: Shion Wakayama, Natsuki Hanae, Mayumi Tanaka, Nana Mizuki, Kaori Maeda, Miyu Tomita, Ayane Sakura, Aya Yamane, Natsu Yorita, Tomokazu Seki, Kaito Ishikawa, Naomi Ohzora, Chiaki Takahashi, Kousuke Echigoya, Kureha Maki, Ayano Shibuya, Eriko Kadokura, Rikuya Yasuda, Daichi Fujiwara, Serika Hiromatsu, Hayato Furusawa