Lout of Count's Family (백작가의 망나니가 되었다), also known as Trash of the Count's Family, is a Korean webnovel written by Yoo Ryeo Han (유려한), and published on Munpia on April 9th of 2018.

So far, the first novel is complete. Part two, Laws of the Hunt, is still ongoing, with three chapters being posted a week. There are currently 10 volumes, over 1,000 chapters, and a manhwa adaptation that began serializing as of September 1st of 2020. The manhwa is illustrated by the artist PAN4 (@Pan_4_) who was responsible for making the novel's second cover.

Although the novel was formerly being translated officially by Miraclerifle on Wuxiaworld, due to miscommunications between Wuxiaworld and the publisher, the author ultimately made the final decision to end licensing discussions with Wuxiaworld. As of May 11th of 2020, Wuxiaworld decided to stop translating the novel in order to respect the author's wishes, ending their translation at Chapter 627. Further information regarding this situation can be found on Wuxiaworld's official announcement post.

After Wuxiaworld dropped the translation, the Eat Apple Pies (EAP) team announced that they will be continuing from where Wuxiaworld had left off at chapter 627. They posted chapter 628 on November 20th of 2020, and finished with Part 1: The Birth of a Hero on May 6, 2022. The side stories were also translated by them and was completed on August 8, 2022. As of February 2025, the EAP team is regularly updating Part 2: Laws of the Hunt.

Beginning with the awakening of our main character, Kim Rok Soo, in a different world, he finds himself possessing the body of a minor villain inside of the novel The Birth of a Hero: Cale Henituse. As he tried to avoid being beaten up as in the original novel, his actions directly lead to the original plot derailing and he finds himself dragged into the center of many conflicts happening in the world.

Set in a fantastical world with elements such as magic and dragons, Cale utilizes the knowledge that he has from having read The Birth of a Hero by using those knowledges and taking in future elements while uncovering a devious plot that connects everything.