DxD: Scion of Lucifuge - Chapter 198: I Ask of You, Are You My Master?—Artoria’s Battle Begins

The empire had called him a villain, now they raise him as their heir.Once feared as the most powerful being alive, the so-called “Villain of Chaos” was brought down by the very heroes who craved his artifact. Now, he’s been reborn into the very home that had killed him in the name of cleansing the world. In a royal court ruled by lies and power games, he is no longer the demon to be feared… yet. His mother concealed his identity on the day he was born, and a river of blood flowed for his sakeNow he will learn how to pull the strings in court as its prince, and train to ascend the throne and become the most powerful mage the empire has ever seen.The world thinks it killed him. It only gave him a reason to return.

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

The main character is reborn as a character from a game he played in his previous life. This character falls into ruin along with the villainess, spending the last of their years together. A man named Kururi Helan.

When an unlucky, awkward virgin dies in the most humiliating way possible (you don’t wanna know), he wakes up not in heaven… but a mechanical construct powered by divine magics built for a single purpose: Sex.In a fantasy world cursed by a sexually frustrated demon queen, men can’t keep it up, women haven’t had a decent orgasm in centuries, and birth rates have plummeted harder than masculine egos. Society is teetering on the edge of population collapse—and the only thing standing between mass hysteria and sweaty salvation... is him.His new owners? A smoking-hot, elven herbwitch MILF and her fiery half-dwarf, half-elf genius daughter who created him as their latest “intimate invention.” After a magical screw-up gives him a soul (and an upgrade below the belt), he becomes the only pleasure unit capable of leveling-up his powers of pleasure, independent thought—and maybe... emotional connection?Now powered by aphrodisiacs, awkwardness, and sheer mechanical stamina, our hero must navigate lusty labs, intense moaning missions, and a society starving for satisfaction... all while trying to survive being “tested” and “reviewed” by every noblewoman, monster girl, and lonely tavern wench in the realm.------------------WARNING: May contain excessive thrusting, magical lubricant, seductive stat screens, and one very confused virgin trying to do the right thing! Reader Beware... and bring tissues.