MTL - Harry Potter’s Book of Sin - Chapter 2619 that's how it should be

Sue Kirin was a loser. Thirty years old with no hope for advancement at his job and no redeeming features except one, Magic. For as long as he could remember Kirin had dedicated his life to practicing the Arcane. Unfortunately, when he was passing down his knowledge to his niece, she lost control of her power resulting in a backlash of vicious energy that resulted in her being sent to the hospital, her life in critical danger.

Noah was a social outcast, bullied and shunned by his peers. He suffered humiliation after humiliation, building up a resentment for the world that he couldn’t act on, as he was as weak as they come.That is, until he discovers a dusty grimoire in his attic. Just by opening it, a mystical power flooded his very being, fundamentally altering his body and granting him a gift unlike any other.[Creator’s Grimoire System: Activated][Starting Level: 100]Equipped with the strongest system, unrivaled and seemingly boundless in its abilities, Noah decides to take back the life he missed out on, and much more.Weaving time, rewriting the memories of those around him, and even summoning fictional heroes, there seems to be no limit to the newfound power he has gained from his system.As the world’s first supervillain, he sets his sights on world domination, but who will try and stop the godlike youth in his path?

[No turning back to old love + single female lead + daily sweetness + no system, no Golden Finger + relaxation & healing + long-lasting romance]“Xie Xiao, you can't just stop wanting me after being so good to me for three years and getting me used to it. What do these three years between us amount to?” Zhou Mianmian looked at Xie Xiao with tears blurring her eyes and a pitiful expression.“Consider it my bad luck,” Xie Xiao said indifferently with a glance at her.“Are you mad at me because I didn't agree to be with you?” Zhou Mianmian reached out to grab his hand, her voice pleading, “Then let's be together now, okay?”“You deserve someone better than me,” Xie Xiao dodged her hand, pulling the beautiful girl by his side into his arms, “Wife, let’s go.”Now that I'm reborn, let someone else be the lovestruck fool.Xie Xiao just wants to live a sweet life holding the tsundere treasure of a girl he overlooked for years~----In his past life, Xie Xiao was blind, unable to tell the difference between a scheming girl and a treasure.To buy milk for the scheming girl, he got hit by a car and was paralyzed in bed for three years.In the end, the scheming girl turned around and went with another lovestruck fool.Instead, there was a proud and cute girl by his side...Until her accidental death...Xie Xiao closed his eyes in despair...If only time could be turned back...

A Consort seeks prosperity.A Shepherd cloaked in yellow wages war.A Prosthesis-wielder cries out for retribution.Shadows tremble in the depths, encompassed worlds obscuring the many dangerous secrets of history. Might they be unraveled, all ways of life would be threatened. But to climb higher requires risks, to seek the light requires a Gambit of Lifetimes.Only when one determines themselves capable of risking it all, can all prosper.