Holiday at a palm tree research center

Two characters. A real person. Inside the laboratory building with a wall of square white tiles, a square green water tank made of white tiles is installed in the center. A small palm tree is set next to the tank. A woman with pink pigtails swimming in a white one-piece swimsuit. A woman with long silver hair and red eyes. She is wearing an experimental gown. She sits next to the tank near a young woman with pink hair.