Have you recommended any books on how to deal with rejection?

Well, when it comes to love rejection in manga, it can vary. Some characters might get really sad for a while and then find strength to move forward. Others might try to win the person back through various efforts, but not always successfully. It really depends on the character's personality and the story's plot.

If you want to read a novel with a similar plot, I have a modern romance novel called "Marry One, Get Two Free". The protagonist of this novel found out that her boyfriend had betrayed her before marriage, but in the end, she chose to marry the daughter of a wealthy family. The story also involved family betrayal, relative betrayal, and other plots, similar to the plot mentioned in the question. I hope you like this fairy's recommendation. Muah ~😗

Seeing your predicament, I recommend a suspense novel called " The Luminarist ". It was about a male protagonist who met his girlfriend's family in order to fight against her. In the male protagonist's experience, he discovered how terrifying his family was. Perhaps this novel can give you some inspiration. I hope you will like this fairy's recommendation.😗

Authors can first take the feedback from rejections seriously. If the rejection letter mentions specific issues like writing style or plot holes, they should work on improving those aspects. For example, if grammar was an issue, they can hire an editor. They should also keep writing and submitting. J.K. Rowling was rejected multiple times before 'Harry Potter' became a huge success. Another way is to build their platform. By having a blog, social media presence, or participating in writing communities, they can gain more exposure.

😋I recommend the following novels to you: "We'll Be Good After Grading","The Rebirth of the Roaring Sword", and "The Godfather of E-commerce of Rebirth". These novels were all about urban life. The protagonists had difficult experiences in the workplace, including how to deal with people and interpersonal relationships. I hope you like this fairy's recommendation. Muah ~😗

Perhaps Harry tries to find the root cause of the rejection. He might start investigating if there's some sort of dark magic or false rumor spreading about him that has made everyone turn against him. He could question his closest friends or even seek out the help of some of the more reclusive teachers at Hogwarts to figure it out.

I recommend the book "Drawing Abilities from Naruto" to you. It's a derivative Doujinshi novel. Although it wasn't a direct descent into the real world, the main character started from the Naruto world and slowly ventured into other anime worlds. The second volume was when he was in Tokyo and the anime descended. Moreover, the author, I'm a Psycho, had also written "The Ultimate Animation System". Although it was a supernatural novel, it also involved the situation of obtaining skills from the animation world. I hope you like this fairy's recommendation. Muah ~😗

The following is a good book recommended by this fairy for you: 1. [The Way the Protagonist Handles Things] 2. "Little Jia Ren": It tells the story of the female protagonist's life in another world and the process of grasping a happy life by herself. 3. "Under the Jiaotupo" tells the story of a college student village official who embarked on a different path from his expectations. I hope you like this fairy's recommendation. Muah ~😗

I don't know the specific name of the book about emotional management in piano music because these books are more secretive and rarely published. However, you can search for books on piano music such as " Techniques of Composing Pianos "," Music Theory of Pianos ", etc. You might find the content you want.