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

This made him want to brutally torture that bastard prince of the royal family and his pet. Alas! Things had gotten out of his hands now.

"Is there no way to wake her up? I don't want her to suffer any longer. The more I see her like this, the guiltier I feel towards her." Zach's tone had grown solemn and somewhat pleading when he asked the old doctor for a remedy.

"I have seen similar cases before but never to this extent. Some of them consumed their potential to a certain percentage below the halfway point while others managed to go as high as the half of their potential and the entirety of their mana. But I have never seen someone who managed to use them both entirely and still managed to retain their life like her. She must have been quite powerful."

"She is powerful. But she was still forced into such a state. Please tell me if there is something I can do to wake her up." Zach answered with a voice laden with remorse.

Chapter 168 The Only Method