when everyone know dragon is luffy's father

In the novel " Celebrating Years," Fan Xian's life experience was known to everyone in chapter 51 of the book. In this chapter, Fan Xian's mother, Ye Qingmei, was killed by the Qing Emperor. Wu Zhu brought Fan Xian to Taiping Courtyard. Fan Xian read his mother's letter and learned of his past. Later, when Fei Jie examined Fan Xian's body, he also discovered that there was something wrong with his meridians. After Fan Xian asked Fei Jie, he confirmed his identity. Later, under Fan Ruoruo's reminder, Fan Xian began to investigate the mystery of his birth.

Fan Xian's past was known by some people early in the novel " Celebrating Years." The Qing Emperor, Fan Jian, and Chen Pingping all knew of Fan Xian's background. The Qing Emperor had even met Fan Xian in the Qing Temple and arranged Lin Wan 'er's marriage to him. Fan Jian and Chen Pingping also sent Fei Jie to teach Fan Xian how to recognize and use poison and martial arts. Thus, everyone knew early in the novel that Fan Xian was a prince.

Everyone knew early on in the novel " Celebrating Years " that Fan Xian was a prince. The Qing Emperor, Fan Jian, Chen Pingping, and the others all knew of Fan Xian's background. The Qing Emperor had met Fan Xian in the Qing Temple and arranged Lin Wan 'er's marriage to him. Fan Jian and Chen Pingping also sent Fei Jie to teach Fan Xian how to recognize and use poison and martial arts. Fan Xian's grandmother had long known that he was the Qing Emperor's son, but she had always hidden this fact. To be more specific, after Fan Xian saw the letter his mother had left him, he began to doubt his identity. Through a series of events and plots, he further confirmed that he was the Qing Emperor's son. Thus, everyone knew early on that Fan Xian was a prince.

Luffy would probably still value his friends above all else. However, as a Celestial Dragon, he might have more power at his disposal. This could make him a bit more confident in his actions, but also more responsible. He might feel the need to use his influence to protect not just his crew, but also the oppressed people he meets, in a more official way.

Little Qiao's father was a chivalrous man who was known as the Snake Master in Jianghu. The Poison Fang Technique that he cultivated was famous in Jianghu, and he had always guarded the peace of the village. However, the pretty little dragon did not grow venomous fangs like his father, and was unable to cultivate his venomous fang technique. Therefore, Master Snake felt disappointed and depressed. At a critical moment when he was attacked by the Gorilla Bandits, Viper showed his courage and dancing skills and successfully subdued the Bandits, making Snake Master proud and happy.

In fanfiction, when Monkey D. Dragon meets Luffy's crew, he might offer them some secret knowledge. For example, he could share some lost history about the One Piece or give them tips on how to deal with the World Government's more devious plots. He might also be impressed by the growth and unity of Luffy's crew, seeing how far his son has come in his journey.

In the novel " Celebrating the Years," Fan Xian first suspected his identity when he saw the letter his mother had left him. Then, he saw his mother's portrait in the palace and further confirmed his identity as a prince. Thus, Fan Xian learned of his origins early in the novel.

Fan Xian only learned that the Qing Emperor was his father in the ending of the TV series " Celebrating Years." During Fan Xian's journey to Northern Qi, the Qing Emperor's worried behavior made Fan Xian suspicious. He began to investigate the Qing Emperor's relationship with Ye Qingmei and gradually guessed that the Qing Emperor was his biological father. In the end, when Fan Xian questioned the Qing Emperor, the Qing Emperor admitted his identity. Thus, only at the end of the play did Fan Xian learn that the Qing Emperor was his father.

Fan Xian only learned that the Qing Emperor was his father in the ending of the television series " Celebrating Years." When Fan Xian had gone to Northern Qi, the worried actions the Qing Emperor had shown had made Fan Xian suspicious. Thus, Fan Xian began to investigate the relationship between the Qing Emperor and Ye Qingmei. Through his investigation, he had vaguely guessed that the Qing Emperor was his biological father. In the end, Fan Xian questioned the Qing Emperor, and the Qing Emperor admitted his identity.

It could be seen that on many occasions, someone had sung a song called " Father." Moreover, it was sung very emotionally and resonated with the audience. Some people even cried because of it. Among them, Liu Hegang's performance of " Father " at the Central TV Youth Singing Competition had touched the judges and the audience. His outstanding singing skills made the judges cry uncontrollably. In addition, there was a seven-year-old boy named Wang Haocheng who sang "Father" on the variety show "Music Master Class." He also sang very emotionally and was called "the most attentive little singer" on the show by netizens. Other than that, there were other singers who sang " Father " and made the audience cry. However, there was no clear information in the search results about which performance caused the father to cry in the scene mentioned in the question. Therefore, it was impossible to determine which performance it was.