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

"It's not about proving, master. I want to be your partner. I want to face all the challenges together with you. I want to contribute, not just be someone you take care of because of your relationship with me."

"Fine then, I won't try to stop you. But you have to promise me that you will take care of yourself. And there is no need to force yourself. If you find yourself unable to convince your family, rush back to me immediately. We can think of some other solution together, okay?" Zach had no other choice but to relent to her stubbornness and let her go.

"I promise, master...and when I come back, we'll face everything together and I won't have to be away from you ever again."

Luna gave him one final smile before walking away from him slowly. She used the servant exit to venture into the outside world as Zach was left behind to watch her receding back with remorse in his eyes.

Chapter 396 I Promise