A Sex-Crazed Monster Develops My Body Night After Night

Mashiro is living a strange life with Kuro, a ghost she met in the company's archives. Mashiro is troubled by Kuro's flirty and charming personality, but her heart is also wavering because of his lover-like behavior.

Little does she know that Kuro's true nature will be revealed at night... Kuro's shadow

approaches while she sleeps. Her sensitive parts are continuously teased with his tongue and fingers, and every inch of her body is thoroughly explored...

https://www.cmoa.jp/title/346944/