Transmigrated as the True Heir: Prepped for Face-Slapping, But Found Myself Pampered Instead!

Su Ze transmigrated. As someone who frequently surfs the internet, he immediately recognized the extraordinary setup before him. An orphaned you master has been found, but there's already a fake you master in the family. This is his chance to show off and slap people in the face! Next, he'll inevitably face parental favoritism, a false accusation from his youer brother, and disgust from his older sister. He, the real you master, is unloved. Today, having transmigrated, he's determined to get revenge for him. The slap in the face begins! Wait, something's not right with these memories. How come you're so pampered? Why are his parents so rational? And his sister cares about him too? Thankfully, the fake you master is still just as wicked. Wait, I'm a bad guy too! Wait, this fake you master makes the real you master take the blame for everything. From today onwards, the tables are turned. Wait, something's not right. What's this fiancée? A brother-supporting demon? And what's with the Dragon King?!