Mashumaro Big plush Sanrio character

Masyumaro lives in an apartment in Paris. They can't speak any human language, but a mysterious language that everyone can still understand. They like to sing and play the piano and is practicing doing the two together. Everyone that hears their voice says that it makes them feel relieved. Their dream is to be a musical star who makes everyone happy. They have two pouches on their belly to store marshmallows. These are not visible in every image of the character, but some show them and plushies of the character have them as well (including the plushies used in stop-motion promotional videos of the character). Their marshmallows are said to have mysterious powers.