Ootakemaru

Ootakemaru (大嶽丸, also sometimes called 鬼神魔王、大だけ丸、or 大竹丸) is a figure in Japanese folklore.

He lived during the reign of Emperor Kanmu (781-806) and was one of the chief enemies of shogun Sakanoue no Tamuramaro.

Ootakemaru mostly connected to the story of Sakanoue no Tamuromaro's oni extermination.

[2] He is considered one of the Great Three Evil Yokai of Japan [jp] alongside Shuten-dōji and Tamamo-no-Mae,[3] though some version of the list replace Ootakemaru with Sutoku-tenno.

Ootakemaru was said to be able to manipulate the weather such as storms and thunder, capable of creating dark clouds to cover Suzuka Mountain that rained fire.