As crew members on the Shirase, which is responsible for the transport of the Antarctic Expeditionary Teams, we were part of the 57th and 58th expedition teams, becoming the first female self-defense petty officer to take part in Antarctic observation efforts. Aboard the Shirase, we supported its navigation through icebreakers, and also worked at Showa Station, which helped us to understand just how important teamwork is when working in harsh environments.Crewmembers of various specialties must act as one in order to operate military vessels. In this respect, we hope to contribute to increased opportunities for future female self-defense petty officer.