Due to a shortage, the crew has to conserve water by drinking ramune and using seawater for showers and cleaning until they can replenish supplies. They soon run into some luck when they come across some rain, only for it to suddenly turn into a storm. This leads Akeno to reveal that she has a fear of lightning, as it reminds her of a day she became separated from her parents during a shipwreck, whose whereabouts are still unknown. The Harekaze soon learns of a stranded mall ship and are sent to help evacuate its passengers. As Mashiro and Wilhelmina lead a rescue party, Mashiro gets caught up in a flood while rescuing a cat named Tamonmaru. Just as Mashiro laments her bad luck, she is rescued by the Blue Mermaids, who take Minami's antibody with them, while Tamonmaru's owners deciding to let him stay with Mashiro aboard the Harekaze. After the rescue mission, the Harekaze sails through a fog not knowing another ship was just near them.