Those Years I Spent as a Righteous Hero

Xie Yuzhi, only son of the Left Chancellor and a notorious young wastrel in the capital, once took a writer to task. The very next day, that writer published a story portraying Xie Yuzhi as an evil, brutal villain. Though born into a righteous sect, his heart was wicked and cruel. He took one look at the beautiful Xun An, the story's protagonist, and traded a spiritual treasure with the protagonist's love interest to claim him. Then he bullied and abused Xun An every day to satisfy his unspeakable desires. In the end, the protagonist killed him with a single sword strike, destroying his soul completely. But Xun An wasn't a made-up name. He was a famous pure companion at the Nan Feng House. After being humiliated like that, Xie Yuzhi flew into a rage and was about to go smash up a few bookstores to make a point. On the way, he ran into Xun An from the Nan Feng House. Xun An invited him in for a cup of tea, and then... he transmigrated into the book. He had become Xie Yuzhi, the evil, wicked, and brutal villain who did all manner of vile things. At this moment, he was about to spend a spiritual treasure to trade for Xun An. The protagonist was also horribly abused in the original story, so this should be a story where the love interest spoils him, right? If the protagonist gives too much in a relationship, he may suffer physical harm. An attack who is forced to become the leader of the righteous path x a tragic, badly wounded receiver. Theme: Be a good person.