Marumofubiyori is a notable character that was recently introduced in the Sanrio characters lineup.

Born in 2017, he has gained popularity, particularly among little girls, through cute videos on social media and features in magazines aimed at young females.

Marumofubiyori is actually the name of the work, and the main character is a polar bear boy named Mop who loves his favorite blanket.

Mop is lazy and carefree, always wearing his polka-dot blanket on his head.
His hobbies include browsing video and online shopping websites while lounging at home. If something inconvenient happens, he'll immediately hide under his blanket.
His behavior resembles that of a cleaning mop, which is why he was named Mop.