Tsuki ga Michibiku Isekai Douchuu Season 1 Episode 2

Black Spider of Disaster

Makoto forms a favorable contract with greater dragon Shin. Shin takes him to her demiplane, another world that exists within her mist. Blessed with fertile lands and hidden from the Goddess, Makoto develops the demiplane along with the Highland orcs who have settled there. Meanwhile, outside the demiplane, the Black Spider of Disaster driven to madness by her eternal hunger closes in on the demiplane.