Brother Can't Be a Villain [Through the Book]

Who doesn't know who doesn't know that the young lady from Zhennan Hou Mansion is controlled by her brother? And the eldest young master of the Zhennan Hou Mansion is a true sister-in-law. "You don't love your brother, I do! You don't love your brother, I do!" "Having this sister is my lifelong blessing!" The sister will do anything for her brother, and the brother will devote his whole life to his sister! Fake brother and sister, ancient times! Those who are not biological are not related by blood. Really sweet. Intention: to get married eventually