Botan's group encounters three people being menaced by a crocodile in a pond, and she immediately jumps in to save them. Botan explains that they are the remainder of Summer Team B; Matsuri Tendō, Chimaki Yamori and Hotaru Kusakuri. Natsu realizes their island in a lake, so they build a raft and leave to find the outer shore. They arrive and begin the search for food, but also find the Nagasaki peace statue underwater. Botan decides to head for the nearest Fuji, Mt. Bungo Fuji, also known as Mt. Yufu. While walking, Natsu accidentally come across the entrance to one of the sealed caches containing the necessary materials for survival and self-sufficiency...