The Hungry Succubus Wants to Consume Him Vol. 1 (manga)

Kururi is a super-elite succubus looking for her one-thousandth man, but it can't be just any old shmuck! She wants to harvest the energy of a primo virgin. That should be easy, right? After all, no man's ever been able to refuse her charms…until she meets Jien, an ascetic monk in training. He proves immune to her potent aphrodisiac, causing her to whip out every trick in the book and even invent some new ones. It's a battle of wills as these two worlds collide!