Ye Xiu turned into a child.

In "Full Time Expert," Ye Xiu didn't really return to the 15-year-old storyline. Ye Xiu left home at the age of 15 and threw himself into the eSports world, becoming a top professional player. Although he experienced many challenges and growth in the story, he did not really return to his 15-year-old body or state. In the story, Ye Xiu had always maintained a mature and experienced image. His age and experience had made him a legend in the eSports world. While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!

In Butterfly Blue's novel," Full-time Expert," Ye Xiu hadn't gone through the scenario of becoming smaller and transferring to Tyranny. Ye Xiu was the male protagonist of the novel, the number one Master Tactician in the Glory Alliance. He was Team Excellent Era's captain and core player, leading the team to multiple championships. Later in the novel, due to the club's financial problems, he was forced to transfer to Team Happy. In Team Happy, he continued to display his talent and leadership, leading the team to many victories. While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!

In the novel, Ye Xiu didn't turn into a kitten. Ye Xiu was one of the first batch of Glory players, the first generation of Glory Pro League players. He had created many strategies in Glory and even on the battlefield. Proficient in all classes, known as Glory's textbook, Master Tactician. But when Club Excellent Era faced the danger of disbandment, Ye Xiu didn't renew his contract with the club and was forced to become a network administrator. In Glory's tenth server, he re-entered the game, bringing with him his memories of the past and an unfinished self-made weapon. He began his journey back to the top. While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!

In "Full Time Expert," Ye Xiu didn't turn into a girl. As the male lead, Ye Xiu had always been a male character. The "full-time expert Ye Xiu turning into a girl novel" you mentioned might be referring to Doujin novels or derivative works on the Internet. These works weren't created by the original author Butterfly Blue, but were re-created by other authors based on the original characters. These doujinshi novels might have adapted the gender of the characters, but they didn't form part of the original novel. While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!

Ye Xiu was Ye Qiu's younger brother in "Full Time Expert." Ye Xiu, the male lead in Butterfly Blue's eSports novel " Full Time Expert " and its derivative works. He was the "Glory textbook" for all classes in Glory. He was also one of the first generation players in the Glory Pro League, and he had created many tactics in the game and even on the field. He returned to the game in the tenth server, bringing with him his memories of the past and an incomplete self-made weapon. He began his journey back to the peak. While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!

According to the current online literature and discussions, there were no novels that described Ye Xiu and Su Mucheng having a child. Ye Xiu and Su Mucheng's relationship in " Expert " was mainly described as close business partners and friends. Their relationship was deep, but it was usually interpreted as a deep friendship that surpassed love. Although some readers and fans wanted them to be together, there was no clear development of a relationship in the original novel, let alone a plot with children. However, as a derivative work or a Doujinshi novel, there might be an author who wrote a story about Ye Xiu and Su Mucheng having a child, but this wasn't part of the official history of " Expert." While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!

[Ye Xiu returned to his 18-year-old appearance in a certain storyline.] However, the details of the plot were not provided. As a result, it was impossible to determine the reason or story behind Ye Xiu turning back into an 18-year-old. While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!

In the novel,"Full Time Expert," Ye Xiu didn't turn back to his 18-year-old self. " Full Time Expert " was an online game novel that Butterfly Blue had published on Qidian. It told the story of a professional esports player, Ye Xiu. After he was expelled from the club, he gathered a group of like-minded friends and returned to the peak. In the novel, Ye Xiu didn't return to being 18 years old. Instead, he continued his professional eSports career at the age of 31. While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!

Ye Xiu didn't turn back to 18 years old. After Ye Xiu was expelled from Club Excellent Era, he used Lord Grim's ID to return to the Glory Pro League. He created a new character in the tenth server, named One Autumn Leaf. His appearance and age were the same as when he was 18 years old. While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!

[Ye Xiu returned to his 18-year-old appearance in a certain storyline.] However, the specific details and reasons were not provided. As a result, there was no way to know the exact details of Ye Xiu turning back to 18. While waiting for the anime, you can also click on the link below to read the classic original work of " Full-time Expert "!