different_minds

Zach was a sci-fi game enthusiast who unintentionally crossed over to a magical isekai. Fortunately, he had access to the previous game system and could fight the magic-savvy aborigines with high-tech weapons.
“Magic? No, I have the lightsaber. ”
Unlike what he expected, the system presented him with a different way of leveling up. He had to get some kind of special energy from the pretty girls' bodies on this planet so that he could unlock his weapons.
"What the hell happened? Is my sperm capable of upgrading girls? Can my blood cause those girls to burst out instantly?"
This was incredible.
The succubi were a hated race in the magical isekai because they oversucked male sperm and killed men, but not Zach.
Surprisingly, the majority of the special energy that Zach required was distributed in succubi.
He appeared to be having a fantastic journey.

Release That Succubus

Violet laid it all out in front of them without hiding anything. The only thing she didn't tell them was the identity of Zach as a dark mage. But of course the kind of treatment method she told them was the biggest hint towards that.

It didn't take long for the others to guess the kind of person that the old doctor had invited to heal their master.

"It must be some magic that will transfer our life blood to the old master but that kind of blood magic is wielded by the most fearsome of dark mages. Experimenting with vitality and life force is the worst kind of dark magic there is after necromancy. How can we trust such a person?"

One of the compatriots couldn't help but ask hesitatingly. It was hard for him to believe that a dark mage could be trusted.

Chapter 165 The Misery Of Parting