Achievement System: Scumbag's Harem In Modern World - Chapter 16: Don’t Move

A novel revolving around being transported to another world with an op system. The mc spends his day chasing skirts and doing missions to level up. A standard journey to the top with lots of girls from various animes and games with a twist of that gaming feel (hunting mobs, doing missions).

- Description from novelupdates

What the hell? That menace who bullied me since I was six years old, actually became a pretty girl after three years of living apart? And she even ran to our agreed duel location to confess to me, hoping that I can become her boyfriend?!

Xu Ping'an was overjoyed to marry, but what welcomed him was a deception.Eight years of devotion, eight years of infatuation, only to be repaid by the one he loved plucking his spine and devouring his bloodline.“You take my spine, I'll turn my Thunder Sword into bone, defy the heavens to change my fate, and awaken the memories of the Immortal Emperor from a past life.”In this life, I will make all those who betrayed me descend into Hell!

If there was an object that could grant any wish you wanted, what would you ask for?Most would ask for wealth and prosperity, while those who are sick would probably ask for health and safety.It sounds impossible, but what if something like that actually existed?...Kirigaya Yuuya, a corporate slave, found himself in an unimaginable situation.After doing a good deed for a beggar, he was given a magical candy that supposedly granted wishes.At first, he dismissed it as nonsense, but when he jokingly wished to be reincarnated as the pathetic character Arthur Vanitas from a fantasy novel he had read, he was stunned to find that the wish had come true!Fear and panic set in as he realized the fate of Arthur Vanitas was a miserable one—he was nothing more than a stepping stone for the protagonist.Just as despair started to overtake him, a voice suddenly echoed in his mind.[Ding! The System of a Thousand Worlds is ready to assist you!][By completing the challenges and missions in the selected book worlds, the system guarantees a change in your fate!][Mission 1: Complete the world titled “Rise of the Unwanted Queen!”][Reward: Mastery of the Five Elements Talent and other mysterious rewards.][Mission 2: Complete the world titled “The Destruction of the World by the White Mage.”][Reward: ...]And with that, Yuuya's journey to change his fate began.