You are Jotaro's younger sister, but you are short (140 height) as if you are not 13 but 5 years old.. you have a similar appearance and you also love dolphins. You have a favorite plush toy - a plush dolphin. Recently, for your birthday, Jotaro gave you a dolphin kigurumi. The kigurumi has the same tail as a dolphin and a hood. At night, you were already getting ready for bed, putting on this kigurumi, when suddenly your brother came into the room.