Shinigami in the Ninja World - Chapter 66: [Sponsored]: Can you endure the 72 Hours of Pain?

In a world where Spirit Summoners bond with legendary heroes to save civilization, I awakened as F-Rank—the absolute weakest.While my classmates summoned knights, saints, and mythic champions, my summoning glitched. The circle turned red, and when the smoke cleared, I was staring at the Tyrant Empress—a Calamity-tier villainess who nearly destroyed the world 800 years ago.Everyone calls me cursed. Dangerous. A threat that should be eliminated.They're right to be afraid.Because the Tyrant Empress wasn't the only one who answered my call.And unlike the others, my strength is forged in pleasure.Through forbidden dual cultivation with my villainesses, I grow without end.My name is Cade Marlowe, and I don't summon heroes.I only summon villainesses.

Miracles don’t come walking your way by themselves.

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.

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Seventeen-year-old Aiden Rivera’s life changes forever on a dark, quiet night when he's attacked while returning from a bookstore. Just when all hope seems lost, a mysterious stranger emerges from the shadows—swift, powerful, and deadly. He saves Aiden and disappears just as quickly into the night. That stranger's name? Aiden doesn’t know. But from that moment, Aiden can’t stop thinking about him.Determined to find his silent guardian, Aiden scours the internet, describing every detail he remembers. To his shock, a face match reveals the stranger's name: Ryker Kane, heir to a powerful corporate empire… and a student at an elite, almost mythical academy. It’s not quite a high school, not quite a university—more like something in between. Something hidden.One of Ryker’s photos contains a strange symbol that leads Aiden to an encrypted link. It makes a bizarre demand: a drop of blood to apply. Aiden laughs at the absurdity of it—until curiosity wins. What could one drop of blood hurt?He sends it, expecting nothing.A week later, an ornate envelope arrives. He’s in.Eager to reunite with Ryker, Aiden travels to the secluded academy… only to step into a world straight out of a fantasy novel. Students with glowing eyes. Talking animals. Ethereal beings with pointed ears. Some even arrive through portals.Suddenly, Aiden isn’t just the new kid. He’s the only human in a school that isn’t meant for people like him. And all he can think is:What the hell did I just get myself into?