Uchi no Koakuma-kun

Succubus, beautiful beings that seduce human males to consume their energy, they are the super idols of the devildom.
Spica, a little demon who yearns to become a succubus, and so he breaks the law to travel to the human world alone.
There he finds a human male to attack. He tries to steal his energy by having sex but the human thinks the whole situation... is just a dream?!



(Source: Ichijinsha, translated)