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

Zach was surprised to find that the weakest out of them far surpassed the initial screening test of the Special Forces in his previous world. He felt slightly ashamed as well as quite surprised that the servants of the Luther family were almost at the same level of the Special Forces recruits from his past life in terms of their physical attributes.

He wondered if all the servants of the Luther family had been like that or had Diana gathered them all based on a set criterion that was more focused towards physical attributes.

Zach first worked on honing their physique and their hand to eye coordination through a set of exercises that Diana hadn't needed since she had been a natural talent.

Chapter 102 Special Training