why she had to go to the duke

Maybe it was part of the plot's development or to fulfill some important mission.

It could be that the duke had something she needed or that she was sent on a mission to interact with him. Maybe it was to uncover a secret or gain important information.

One reason could be that the fanfics don't capture the true essence and charm of the original She-Ra. Sometimes they stray too far from the established lore and characterizations.

When Ruoruo was still very young and in poor health, Count Sinan, Fan Jian, had sent his only daughter back to Danzhou in the name of recuperation. Later, he had secretly maintained the correspondence between Danzhou and Jingdou. Here, Fan Jian was actually hiding his own thoughts. He had always thought that if the Qing Emperor wanted Fan Xian back in the future, he might force Ruoruo to marry Fan Xian. And this mentality had to be mentioned about Fan Jian and Ye Qingmei, Fan Jian's crush. Maoni explained that many middle-aged men might have some kind of desire to let their son or daughter marry another woman's son or daughter to satisfy their unfulfilled desire back then. However, Fan Xian had returned to the ancestral temple, so Fan Xian and Ruoruo had become actual siblings, avoiding this possibility.

In the anime Go Soul, Samo and Ko Kondo were both Go players who competed with each other in Go skills. In the anime, when Sami saw that Mitsuki Kondo's Go skills had surpassed his own, he chose to leave the Go world and live an ordinary life. To be specific, Zuo Wei was a very hardworking and ambitious player in anime. He hoped to achieve better results and status in his field. However, when he found that his chess skills could no longer improve, he began to feel depressed and lost. In addition, he also realized that as a Go player, his life was not just about winning the game, but more importantly, pursuing his dreams and life values. Therefore, when he saw the performance of Ko Kondo, he realized that he had already surpassed his limits and there was no need for him to continue struggling in the Go world. He chose to leave and find a more suitable direction to live an ordinary and happy life. This was also one of the most touching and classic plots in anime.

It was a poem in ancient prose, but it was still unknown which work it came from. This poem meant that whether one came to this world or left it, there would be a kind of sadness and pain. It expressed people's thoughts and entanglement about life and death, as well as their insight into the pain and joy of the human world. This poem expressed an open-minded attitude towards life. Although he had seen through the bitterness and joy of the human world, his heart still could not let go.

It might not be exactly what you need, but I would recommend a novel that is most relevant to your description. The Tear of the Mermaid Princess is a short story by the author, Manwei. The general plot of this novel is as follows: In the mid-to-late 21st century, the environment on Earth deteriorated and the mermaid race suffered from environmental pollution. In order to escape from marriage, the Mermaid Princess took refuge on land. The Mermaid King sent his subordinates to retrieve the princess. At the same time, the Prime Minister Turtle of the Mermaid Kingdom plotted a coup and usurped the throne. He sent soldiers ashore to kill the princess and planned to attack humans to rule the earth. The Mermaid Princess met the loser male protagonist on the shore, but she was taken in by the rich second generation, and a love triangle was played out. The king's subordinates from the bottom of the sea and Prime Minister Turtle's villains who were in charge of hunting them down had all kinds of ridiculous stories on land. Could earthlings compete with the undersea people for dominance? Would the Mermaid Princess and the loser have eternal love? ---------------------------- "My Mr. Mermaid" was a fantasy romance novel written by Hai Tingfeng. The general plot of the novel was: Did you know? "The legendary merfolk really exist. Falling in love with a human is equivalent to death and rebirth. When I first set foot on land, I never thought that I would meet you. I never regretted falling in love with you. Looking at the contents of the letter, the woman could not help but cry. She said with a trembling voice,"Actually…I already knew you were a mermaid…" ---------------------------- "The Story of a Cute Fish in the City" was a modern romance novel written by the author, Netherworld Doll. The general plot of this novel was: This was the story of a human who had been reborn as a sea monster and worked hard to cultivate, and a mermaid who had transmigrated to another world. When the sea monster, who had never seen a mermaid before, saw a beautiful mermaid, its only thought was to possess her and get her! [PS: One of the mermaid series, the entertainment circle's special ability favorite novel, so much so that it makes one's hair stand on end ~~~~] The manuscript was saved in April, and 3,000 was updated every day in May. ---------------------------- "The Mermaid Patriarch" was a fantasy novel written by the author, Blue Mermaid. The general plot of the novel was: After an accident, Lan Guang woke up to find that he had turned into a fish. Moreover, it was a legendary mermaid. However, it was not what Lan Yu had imagined. Because he was a male fish. This was a story of a human turning back into a human after going through many calamities after becoming a fish. The story was very exciting. There were all kinds of strange sea creatures, and there were also mages and knights. At the same time, there were legendary yao arts and legendary divine dragons here. ---------------------------- "Crossing Mountains and Seas to Love You" was a modern romance novel written by the author, Inkoue Island. The general plot of this novel was: [Super Power Deep Sea Palace, Innocent and Cute Mermaid + Entertainment Circle's Top Male God, Duoduo] Atlantis 'Deep Sea Palace's Mermaid, miraculously survived after falling into the Earth's Core Tunnel, but was washed onto the beach by a huge wave on a full moon night, and was picked up by the Entertainment Circle's Top Male God of Abstinence from Taxi Beach. She lived in his house, ate his food, used his clothes, and even gave him her name. Yet, she told him countless lies. She felt like a fish. She vowed to establish herself on land, signed on to the MT's Rising Star Project, and got involved in the personal grudges of the female bosses of the entertainment industry for no reason. Xiao Tianye was not only a special professor of human anatomy at a medical university, but he also had all kinds of unexpected identities. His purpose was to find out the truth about the disaster that year. He did not expect to find out that…sweetness, affection, heart-wrenching, fantasy, technological sense…all of them were online! ---------------------------- The book "Love with the Mercenaries in the Galaxy" was a sci-fi space novel written by the author, Flying Fish. The general plot of the novel was: "It's her?" The man's voice was devoid of any warmth. He looked at her as if she was a dead person. "Yes, sir!" "Throw it out." The man turned around and left elegantly after saying those three words. Lin Wenlan thought to himself,'Wait, wait a minute! What was going on? Why are you dragging me? Wait... The second time they met, he said,"Master, or die." The man was as stingy with his words as ever. "Patriarch! Patriarch!" Lin Wenlan hurriedly nodded his head, afraid that he would lose his life if he answered too late. The third time they met, she said,"You…" You…" Lin Wenlan was speechless. The man's figure surprised her. She had thought that the two of them would never meet again! He facepalmed…The soul of this article travels through the future interstellar space, strong women and strong men, put an end to the little Mary Sue, start with me ~. ---------------------------- "Wolf Boss: The Cute Siren Wife Is Hard to Stop" was a mystery detective novel written by the author, Quicksand. The general plot of this novel was: As a lecherous mermaid, Wu Lingyun expressed her lifelong wish: 1. Collect beautiful scallops! 2. Collect the handsome man into the scallop! However, the second option was really difficult to achieve. The little mermaid had no choice but to go ashore for the sake of the beautiful man. ---- This novel was currently arranged for four lifetimes of love. The little mermaid had an eternal life and was waiting for the reincarnation of the male protagonist to continue their relationship. What era and background story would everyone want to see? They would add their thoughts in the comments. ---------------------------- Spring of the Mermaid was a fantasy romance novel written by Master Jingzhi. The general plot of the novel was: A carp spirit fell in love with a human and gave birth to a baby girl with a human upper body and a fish lower body. She was named Emma. Emma had lived alone in the vast and boundless sea since she was young. She was true, kind, and beautiful. The fish in the fish world called her the 'fish beauty'. In the deep sea, Emma made many friends, including the great white shark, White Four, who was Emma's loyal guardian. He accompanied Emma and protected her at all times. He also passed on his magic power that he had cultivated for 50 years to Emma to help her fulfill her long-awaited wish-to transform into a human. The third prince of the Dragon Palace, Long Feiyu, had been obsessed with Emma ever since he met her when he was five years old. After many years, he met the beautiful fish beauty, Emma, again and pursued her strongly. Emma had heard about her birth when she was attending a banquet in the Dragon Palace. She knew that her father was still in the human world, so she decided to leave the ocean and go to the human world to find her father. The pure and kind-hearted Emma saw all kinds of humans in the human world and fell into the trap of the bad guys many times. Thanks to the third young master of Ouyang Villa, Ouyang Zi, she was saved several times. Ouyang Zi helped Emma find her father and the two fell in love with each other. At the same time, the third prince of the dragon, Long Feiyu, heard that Emma had gone to the human world and left the Dragon Palace to come to the human world to find Emma. A love triangle began. ---------------------------- "The Sweet Wife from the Air: A Beautiful Mermaid Who Explodes in the Entertainment Industry" was a modern romance novel written by the author Bao Huo. The general plot of this novel was: The ecology of the sea was destroyed, and the only remaining Mermaid Princess Belle had to go ashore to find male fish to reproduce. After her fishtail turned into legs, she went from a noble mermaid princess to a silly and sweet human. She was even robbed by the damn human, cold and domineering Huo Sihan. Huo Sinan, who had woken up from his drunken stupor, pinched a blue fish scale and fell into deep thought, I slept with a fish? She had thought that it would be miserable to give birth to a mixed-blood human, but in the end, the three little ones spoiled Belle like a treasure. In order to earn money and raise a child, she entered the entertainment industry. Money, money, money. I'm not greedy. I'll get a female supporting role to gain experience first. In the end, she killed all the way to the top, squeezing out the most favored connections, winning the best female lead, and walking to the peak of her life. Five years ago, mermaids were ignorant and could be bullied by anyone. Five years later, whoever dares to bully me, I will teach you a new life. Even Huo Sihan, who had a poker face in front of everyone, could only hug the washboard and sleep. Bei Yi,"Mommy is mighty." Bei Er,"Mommy, if anyone dares to bully you, why don't you go back to the bottom of the sea?" Bei San said,"Mommy, I've contracted the entire sea for you. From now on, we'll be happy kings." Huo Sihan said,"If only I had these three little ones." Belle rolled her eyes and thought, This is yours. As a beginner, he did not understand the ways of the world in human society, so he was quite stupid at first, but he became stronger after he was enlightened. ---------------------------- "The Legend of Silver Carp" was written by the author, Congee Eating Child. It was a classic Xianxia novel. The general plot of this novel was: "I'm recommending my new article. I hope everyone will vote for it after reading it. As a mermaid, Mwah Mwah's dream is to look at the blue sky, then lie on the beach and bask in the sun, posing in all kinds of beautiful postures. However, there are always annoying people who like to court death. Since you like to court death so much, this lady will send you to the Western Paradise. What are you looking at? Have you never seen a mermaid before? Don't think that you can seduce fish just because you're handsome. I'm not that kind of fish. A certain man approached,"I'm not a casual person either. It just so happens that our families are of equal status." There was a guarantee that he would be a fraud. He had already completed his works,"The Corrupted Wife" and "The Honey of Rebirth, Love Sweetheart!"

Maybe Duke is doing it to achieve a certain goal or to protect someone or something important. There could be multiple reasons behind his actions that are yet to be revealed in the manga.

Maybe Duke has his own motivations or is driven by some internal conflict that we haven't fully understood yet.

Maybe Duke has his own reasons or motivations that haven't been clearly shown yet.