This volume begins with our trio figuring out how to beat the merged Serpoian-Nessie-Dover Demon monster, ending with public embarrassment at school and a realization that the Yokai spirits might be protecting Earth from alien invasions. Aira stands up for Momo and they again take in a creature, this time it's the Dover Demon, who they think is a Kappa and they want to help save his son. Unexpectedly, Momo's childhood friend Jiji, who is a charming goofball, appears at their door and her aunt sets her on a mission to check the auras at his home. Okarun is, of course, jealous, and we end with a cliffhanger of them arriving at Jiji's home, and being observed by some beings from the forest around them.