Ushi-Oni

Encyclopedia Entry:
A kind of arachne that only inhabits the Zipangu region. They possess the upper body of a woman with green skin, and the lower body of a spider covered in black hair. They’re one of the monsters feared as “monstrosities” in Zipangu. Even among monsters, their nature is especially ferocious. Tainted with immense desire, thoughts of savagely raping and violating men are always on their mind. So great is their lust that their body is always hotly seething.