Former General Is Undead Knight - Volume 3, Chapter 4: Kidnapping Incident?

Humanity collapsed in a single night.When the sky darkened and a perpetual night arrived, even the strongest monsters turned feral, tearing through cities until nothing was left but ruin.Dying alone in the ruined world, Ryn Eden Arctis finally understood the truth.Years ago, he was given a strange skillbook—one the church labeled taboo, one no one dared to touch. But the world had taken it away from him.However, he knew that—whatever was inside it, had to be powerful enough for him to stop this calamity.His final regret echoed through the silent wasteland:“If I had learned that damn book, we’d still be alive.”With his dying breath, he wished for only one thing:To go back in time and claim that forbidden power, no matter what.A single star answered.Ryn opens his eyes ten years earlier, on the day he received his first skill.WHAT TO EXPECT:- Korean Regressor Fantasy, if you like that genre this might be the one for you. Think (Trash of the Count's Family, Swordmaster's Youngest Son, FFF-Class Trash Hero)- Romance subplot is prevalent. This is not a harem novel!- MC is NOT naive, and will NOT be afraid to make morally gray choices! Readers advised!

One morning, after being bound to the system, MC started his routine of always being captured/ attacked by the ML.

It doesn’t matter if he transmigrated into the ML’s little brother (TN: Here I think brother disciple) or master or opponent, but in the end he is still forcibly taken by the ML.

After transmigrating to many worlds:

MC: Come out system!!! The heck?! Why do these MLs not love their female goddesses, but insist on doing it with me! Aaaaahh!!!

System: …. __(:3」∠)_ Don’t ask me, I also don’t know.

- Description from Novelupdates

〔Congratulations, for mating with a Queen Bee you got a new achievement: ”Not a virgin”! Your reward: “Drone Consort” title.〕‘Hey! I wasn’t a virgin before this, system!’Imagine that you lived a painfully average life, died by a stupid, stupid accident, but a goddess interfered and gave you a second chance in another world.There, you became a consort of a beautiful, big-chested queen, and your only job is to have mind-blowing sex with her so she could have thousands of your adorable daughters. In return, you can live in peace and luxury for the rest of your days.Which means, for about two months. Because I’m a bee. And my queen is also a bee. And bees don’t live for long.The only way to increase my lifespan is to develop my bee colony. A hard task in this huge world filled with dangerous and hungry beasts, other war-hungry insect tribes, and natural disasters.But I have a hundred thousand daughters, some actual brains, and with superior genes given to me by my system, we will be unstoppable!===Note: no NTR, harem, incest, or outright smut.

A protagonist reborn in another world.