The 5th season of Huyao Xiao Hongniang.

Ten thousand years ago, the immortal king Muyun was conspired by others for holding the Zhu Xiantu. After ten thousand years of sleep, his remnant soul awakened on the famous "Trash Muyun" of the Southern Cloud Empire of the Heavenly Fate continent.

Koto unknowingly seals away the Sun Goddess Amaterasu, and now she is in a different world and can't return. Meeting priestesses who combat the evil in this strange place she learns that Black Towers throughout the land keep Amaterasu sealed away and are guarded by evil monsters. Koto must now find a way to help defeat these monsters and return the world to the way it was. (Source: ANN)

Second season of Souten no Ken: Regenesis.