Monster Factory - Chapter 751: Reclamation.

Following a brutal and tortured death, a former assassin, known only by his codename Kuro, is given the opportunity to reincarnate in another world, a world with magic and monsters. Armed with an unrivaled healing factor and an inhumane pain threshold, Kuro opts to go for a reckless direct approach in this world instead of a stealthy and cautious one, and as a result, slowly gains attention bit by bit.

Having previously been a loner in his old life, he interacts and befriends people for the first time in his existence, however, his blunt nature also sees him making just as many enemies, both big and small. By combining his old assassin skills with the magic powers of this world, along with his high resistance to pain and rapid regeneration, he doesn't take long to establish himself as a formidable force in this world.

Initially, Kuro only faces minor threats, like weaker monsters and bandits. But before too long, the threats slowly but surely become more and more severe…from Zombies to a bloodthirsty empire to Vampires and Demons, and even divine beings…however, as the enemies he faces grow stronger, so does Kuro, gaining rare powers that have never or rarely ever been seen in this world…

The story of otaku building a harem! School flower, loli, wife, mother and daughter, mature woman, teacher, nurse, queen, all kinds of beauties, three steps to push a girl, five steps to a group, harem group, infinite warmth, so cool that you always need to prepare a tissue for easy reading !

- Description from novelbuddy

【Time Travel + Workplace Competition + No Lazing Around + Ambitious Female Lead】Overachiever Shen Wei traveled through time and found herself as the lowest-ranking maid in the grand residence of the Yan Prince.The Yan Prince held a prestigious position, but his consorts were all content to live dull lives. The noble-born princess consort was as tranquil as a chrysanthemum; the concubine sought a life of monogamy; the reincarnated woman was utterly disillusioned with the Yan Prince and had given up on striving for anything; and the other timid concubines dared not make a move…The queen of workplace competition, Shen Wei, declared: Don’t stop me! I’m going to outwork these unambitious slackers!…The Yan Prince had grown accustomed to the stagnant atmosphere in his harem, until a particularly skilled courtesan appeared.This concubine was stunningly beautiful, adept at both literature and dance, hardworking, and always brought him fresh excitement. The Prince couldn’t help but take a second, then a lifetime-long, look at her.Years later, Shen Wei became the all-powerful Imperial Noble Consort, with children and the emperor’s exclusive favor.Meanwhile, the princess consort remained as tranquil as ever; the concubine was aging and had yet to experience a monogamous life; and the reincarnated woman was still eating simple meals in her modest abode…After half a lifetime of striving, Shen Wei finally reached retirement and revealed her true nature, fully embracing a life of leisure. The retired emperor interjected: “You competed for favor just to retire?”Shen Wei snacked on melon seeds: “What else?”Living is all about retirement!The retired emperor was even more surprised to find, in midlife, that other men were vying for his wife’s affections!

[Host, host, I am the System, I can help you conquer the world and the witches with various personalities.]Xi Mu: Hmm... Isn't this an action game? When do we start slashing?[Right... This is an action game, but I suggest that the host also try to seduce the witches along the way, there are generous rewards.]Xi Mu: What rewards?[Of course, the perfect romantic experience!]Xi Mu: No need, I've already played through the romance plotlines. Now I just want to go on a rampage and speedrun the game.][...]