I Picked Up a Stray Demon

1. Gardenia and The White Demon
2. I Picked Up a Stray Demon

Sakaki, a real estate agent, receives a job offer: to investigate a flat where an "erotic monster" appears!
When he goes to the room, half pissed off, he finds Karasu, a demon that eats people's energy!
When he provokes him by saying, "If you can satisfy me (sexually), I'll get out", the super adulterous Sakaki is set on fire...?
Also includes a large number of other erotic and pure love stories!

3. The Lust for Love Quartet