The Sword and Heir of Shadows - Chapter 4: Among the Stars.

[Warning : Mature content R-18]*Premium quality lemons*Excellent waifu with genuine and diverse characters.*Milfs in equal abundance.*Harem members all equally important to the story!*****************************In a world ravaged by the XY Plague, a relentless genetic virus targeting the Y chromosome and crippling male fertility, Zafron, an 18-year-old orphan, faces a grim fate. Sold by his manipulative stepmother to a powerful noblewoman known for her wealth and influence, Zafron's life takes a sudden and dangerous turn.Lady Matilda, determined to secure a future for her noble house amidst the dwindling male population, discovers an astonishing truth about Zafron through rigorous genetic testing that changes everything.Disposed and discarded to his own means, Zaphron falls into a fatal encounter. Now at the point of death, pitied by a diety, Zafron is granted a system but not just any system. Zaphron is gifted the Eros vitality system!Now with his system, he emerges as the most genetically potent male known to exist in his world. But of course, this comes with a price.—Zafron now becomes a target not only for ambitious and desperate noble mistresses but also for men desperate to restore their own fertility, he must navigate a perilous path where trust is scarce and danger lurks at every turn.-------------------[Lady Seraphina, prime minister of Talkyo wants your seed][Princess Cordelia von Aldenberg would like a night with you][The prime minister of Winchester, her excellency is offering her daughter to you].....“I never asked for this burden, but I will carry it. My potency is not just a gift—it's a responsibility to safeguard the future of our kind. So to all the women that I love, believe me when I say that my precious seed will be yours if you give me one thing...”

A god of a different world had abruptly appeared in my classroom and semi-forcibly summoned the entire class to his world.ーーーーexcept for me, Kamiya Yato.

A boy awakens alone in the Fairy Tail world, lost and uncertain. As he ventures through this magical realm, he unravels the secrets of his mysterious new identity, unlocks hidden powers, and carves out his destiny in a land brimming with wonder, danger, and limitless adventure.“Check out my other work, Reincarnated as Ash: A Pokémon Tale.”