He had transmigrated into Hermione's HP fan.

😋I recommend the following Doujin novels to you: I, Hermione, Traversed in Marvel as a Savior-The story of Hermione traversing different worlds to become a Savior. Moonlight Life at Hogwarts-tells about the lives of Hermione and Elvin. "I Am the Big Boss in Front of Hermione"-the story of a male protagonist showing off his skills in front of Hermione. The Esoteric Master of a Hogwarts cult-Hermione's story in the world of Harry Potter. I hope you like this fairy's recommendation. Muah ~😗

In the novel " Celebrating Years," there was no clear information about when Fan Xian knew he had transmigrated. As the plot developed, Fan Xian gradually began to doubt his own origins, but it did not mention the exact time when he realized he had transmigrated. Therefore, based on the information provided, it was impossible to determine when Fan Xian knew he had transmigrated.

In the novel " Celebrating Years," there was no clear information about when Fan Xian knew he had transmigrated. As the plot developed, Fan Xian gradually began to doubt his own origins, but it did not mention the exact time when he realized he had transmigrated. Thus, it was impossible to determine when Fan Xian knew he had transmigrated.

The main character is a mercenary or killer. His soul transmigrated to a new world and became an apocalyptic mage who is more noble than an emperor. In this world, the main character also had the soul of a mage and could use magical spells and dazzling magic skills. I hope you like this fairy's recommendation. Muah ~😗

Before Fan Xian transmigrated, his identity was Fan Shen. He was a patient with severe muscle weakness and was lying in the hospital with an incurable disease. When he woke up, he found that he had become a baby. Fan Xian's true identity was the child of the Qing Emperor and Ye Qingmei, but his mother, Ye Qingmei, had already passed away before he had transmigrated. Fan Xian had been adopted as an illegitimate child by Fan Jian, and Fan Jian had concealed his true identity and sent him to the Fan manor. The Qing Emperor might know Fan Xian's true identity because he had a friendship with Fan Jian and guarded a secret together. However, the exact situation was unknown.

Before Fan Xian transmigrated, his identity was Fan Shen. He was a patient with severe muscle weakness and was lying in the hospital with an incurable disease. When he woke up, he found that he had become a baby. Fan Xian's true identity was the child of the Qing Emperor and Ye Qingmei, but his mother, Ye Qingmei, had already passed away before he had transmigrated.

Before Fan Xian transmigrated, his identity was Fan Shen.

Before Fan Xian transmigrated, his identity was Fan Shen. He was a patient with severe muscle weakness and was lying in the hospital with an incurable disease. When he woke up, he found that he had become a baby. Fan Xian's true identity was the child of the Qing Emperor and Ye Qingmei, but his mother, Ye Qingmei, had already passed away before he had transmigrated. Fan Xian had been adopted as an illegitimate child by Fan Jian, and Fan Jian had concealed his true identity and sent him to the Fan manor. The Qing Emperor might know Fan Xian's true identity because he had a friendship with Fan Jian and guarded a secret together. However, the exact situation was unknown.

There are many great fanfictions out there about Hermione and Draco under the HP Marriage Law concept. Some explore how the two, who were initially on opposite sides at Hogwarts, come to terms with a forced marriage situation. It often delves into their complex personalities and how they grow to understand and even love each other over time.

In many fanfictions, Hermione is often portrayed as even more intelligent and resourceful. She might solve complex magical mysteries that weren't even in the original books. For example, she could figure out a way to reverse a powerful dark curse that no one else had been able to.