Honey, you didn't really drugged me, did you? - Chapter 16 - Ginseng

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.

Ezekiel recognized early in life that he didn't want to follow in his parent's footsteps and spend the rest of his days as a mere farmer. No, his eyes are set on a grander stage, a place where tales of monster hunters, mighty generals, and benevolent heroes hold court — A world of Magic and mysteries.One day, the opportunity he had been waiting for arrives. Without a second thought, Ezekiel throws himself headfirst into the adventure. However, not everything turns out to be as magical as he had dreamt it to be...THIS IS A SLOW BURN FANTASY PROGRESSION LITRPG STORY:Even though you are not going to see blue boxes from chapter one, I guarantee you that this IS a LitRPG story. This is, however, NOT a pure “game world”! Instead, I have tried to integrate the interface elements of a LitRPG into a world with a very thought-out magic & power system, which will be explored over the course of the first book.This world doesn't work like a game, where you can put '5 points in strength' and the body somehow changes magically into a stronger version of itself. It might take a couple of chapters for the world and magic to start to make sense, but I feel like a power system built on solid principles is a lot more rewarding in the long run (...and more IMMERSIVE!).

In the Sky Sword Continent there are thousands of sects and strong cultivators as common as trees. In order to prevent his older sister from being forcefully married off, Lu Xuan had no choice to but to unceasingly cultivate and enter a sect to ask for a favor. By chance, a sword-shaped crystal of mysterious origins entered into Lu Xuan’s body, containing countless top-class martial skills, powerful martial arts, and everything you could wish for! A martial legend starts here…

- Description from Novelupdates

Upon meeting the girl who would become her adopted younger sister, the duke’s daughter Christina regained memories of her previous life. Through those memories, she learned that her new sister, Mishuli, was the heroine of a certain story. And though the story depicted a Christina who abused her sister, the real Christina turned into a siscon who spoiled Mishuli to no end.