When I was relaxing in my Sumikko room as usual, I was suddenly carried by the arms. I was puzzled when I was brought to the middle of a strange island. I wanted to find a calm Sumikko and decided to start exploring. There was a unexplored region in the island. Let's help them explore the unexplored region by having them bring their tools back and having them return to the line with their arms when they might get lost!