My Succubus System - Chapter 10: Love-Love Juice

With the Heavenly Medical Skills and Peerless Martial Arts under his belt, his master had made him descend the mountain to become a live-in son-in-law, all to temper his character! And his wife was an ice queen, who wouldn't even let him touch her, always wearing a cold expression and even expecting him to fetch water for her footbaths!Now, three years had gone by, and the agreed period had come to an end. Surprisingly, the ice queen of a wife decisively asked for a divorce. But the moment he stepped out of the civil affairs office, he found six stunning beauties standing at the door, whose loveliness made even her feel inferior!The ice queen of a wife, “President Su! You, why are you here?”His senior sister, Su Yumei, “I'm here to pick up my little junior brother! Your former husband!”

Son of a bitch! I just finished this godawful fantasy novel, and now I'm knee-deep in it – as David, the disgraced son of the Solarian Empire's top general! Talk about some twisted cosmic joke. But hold on a damn minute... maybe this isn't all bad. Armed with the knowledge of that trashy plot, I can become the ultimate shadow player, an overlord perhaps. Screw the damsel-in-distress harem too – it's time to pull the strings and become the real power behind the throne. This isekai might be a steaming pile, but I'm rewriting the ending with a little more... Debauchery (wink wink).

A tree of 10,000 flowers, the world is the door.
The spells change a lot, but the hearts of the people are unchanged.

- Description from Uukanshu translation

She, a renowned assassin of the 21st century, actually crossed over to become Su Manor’s most useless good-for-nothing Fourth Miss.