Momo and Okarun head to Jiji's house in a hot springs district to investigate the case of Jiji's family. Okarun feels gloomy looking at how close Momo and Jiji are.

Cast: Shion Wakayama, Natsuki Hanae, Mayumi Tanaka, Nana Mizuki, Kaito Ishikawa, Tomokazu Sugita, Fumi Hirano, Shirou Saitou, Shunichi Maki, Michitake Kikuchi, Yusuke Sasaki, Yuki Tamai, Mahana Yamasaki, Azusa Tachibana, Shogo Sakata, Noriaki Kanze