Chizuru invites Hajime, who she has made friends with on social media, on a trip. It was the first time they had ever met in real life, but what awaited them was an even bigger thrill. When they arrived at the island, the plane they were on disappeared and the people they were with on the plane were nowhere to be found. Hajime and Chizuru are bewildered by the sudden start of their survival life. This is a record (sketch) of these two people.