Tako nyūdō

Tako nyūdō is an octopus yōkai with a humanoid form resembling a bald old priest, known for its carnivorous diet and habitat near Shimane Prefecture. It is feared by fishermen for its attacks on boats and people, with its behavior largely shrouded in mystery. The term is sometimes used to mock bald-headed old men due to the resemblance between their heads and octopus heads.