Seirei Tsukai no Blade Dance - Volume 8, Epilogue

Xiao Yu, who was a student from modern Earth, accidentally transports to another world and becomes the lord of a territory. Facing an unfavorable situation, he vows to take back his family business, build his new territory, kill all of those who covet his wealth, and dominate the world!

- Description from Novelupdates

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.

“I never spent a dime from your debt, you both lost it gambling always…” Another slap landed on Astrid's face and this came from none other than her dad, Josh.“You ungrateful brat, it's only the request I am pleading for,” Josh let out and then a sardonic smile escaped her lips.She wiped the tears from her face and now stood from the ground.“I am not going to get married to a man old enough to be my father.” she declared firmly this time not avoiding eye contact with her dad that much.“What?” Josh's voice countered.“Why for once can't you love me?” She cried out her hands moving to her chest as she tried to hold in her tears.Josh moved closer to her, lifting her by her chin roughly, “Then do this one favor for me and save us from losing everything I have ever worked for,” His voice was a bit calm but stern, one could tell he didn't care about Astrid.********Astrid Daniels who is hated by everyone and is known as the faso of family is forced to get married to the man arranged by her father to protect his company from plummeting and also help in paying his debt.She refused but then was told by her dad that he would help pay for her mum’s surgery if she was doing his wish.Since she was a high school drop she couldn't get a good job to pay for her mum's surgery so she needed to agree to her dad’s proposal.On the day of her wedding ceremony with the older man, things turn around when she goes into the wrong hall and gets married to one of the richest men in their city and also her crush.What fate do you think awaits her?

First World : CampioneCurrent - Second World: High School DxDThird World: ???Reincarnated into the world of Campione! Haru Kasugano, our hero slays gods and ascends as the mightiest Godslayer. He battles powerful God-Kings and Campiones, claiming victory after victory. Whatever it is. [Wealth, Power, Beauty] he has it All. Watch him grow stronger as he travels into new realms like High School DxD and the Fateverse, leaving a trail of defeated gods and captivated hearts in his wake.