Cinnamon roll is a popular mascot introduced by Japanese company Sanrio. Because of its big white plush ears, it is deeply loved by the Japanese people and people in other countries. Keep is an app, which was launched on February 4, 20 15. Committed to providing one-stop sports solutions such as fitness teaching, running, cycling, making friends, fitness diet guidance and equipment purchase. There are more than 500 cartoon IP images such as helloKitty, Gemini, Kuromi, Pudding Dog, Lazy Egg and My Melody.