My Wife is A Sword God - Chapter 2: The Mysterious Double Pupil

「Shimizu-san, you dyed your hair black.」「Ah, yes.」「Why did you dye it all of a sudden?」「Because…yesterday…」Shimizu-san, who sat next to me and had dyed her hair from blonde to black gradually lowered her voice, slightly blushed, and laid her face down on the desk.

…but it seems pretty doable.

Killed On The Roof Top On Her Wedding Day By Her Just-Wedded-husband,Jasmine Trevor begged for a second chance at life.As If The Universe Heard Her Plea,Jasmine Trevor Was Reborn To Two Days Before Her Wedding With Jack Raven.This Life,She Vowed To Change Her Fate While Face Slapping Jack And Get A Sweet Revenge. What Would Be The Perfect Face-Slapping Than Getting Married To His Rival??Jasmine Went Ahead With The Wedding,on the aisle,she took everyone by surprise by introducing a new groom while she had security men throw Jack Out Of The Hall.A Villian Was Made. Getting Married To The Infamous Billionaire Monster Who Was Tagged As The Killer Of His Parents,Jasmine Was In For A Ride She Never Bargained For.Jasmine’s Taste For Revenge Made Her Get Entangled With The Sadistic Billionaire Who Has A Very Dark Past,One That Might Cloud Her….Thrust Into His Endless Abyss Through A Contract Marriage, Jasmine Was Stuck With Kingsley Elm—-Who Saw Her As His Possession. An Asset And His Obsession.“Be Tame,Little Vengeful Wife. You’re Mine Now.”

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates