I recommend the book "The Proud Daughter in Charge" to you. The female lead, Yi Feng, uses a whip. She will deal with those who dare to plot against her and fight with those who dare to bully her. I hope you like this fairy's recommendation. Muah ~š
There might be a fanfiction that focuses on the origin of Deku's Black Whip from a more emotional and personal perspective. It could explore how his past experiences and relationships led to the development of this unique quirk, delving deep into his character growth.
The weapon that the male protagonist of the fantasy novel," The Online Dream Guy Next Door," always brought with him when he went out was a whip! I recommend you to read this novel full of love and competition. I believe you will like it.š
Fanfiction.net is also a good place to look. There are many My Hero Academia fanfictions there, and with some careful searching, you'll be able to find some great ones featuring Deku's Black Whip. Look through the My Hero Academia section and keep an eye out for the specific tag or mention in the story summaries.
I recommend "Koba: Misaka Mikoto" to you. The female protagonist, Misaka Mikoto, is a young girl who can use a whip as a weapon. She can also turn into a huge rabbit. I hope you like this fairy's recommendation. Muah ~š
I don't know what kind of gun the main character gets from the black dragon. As someone who loves reading novels, my knowledge comes from a large amount of text data, but I can't browse the Internet or get the latest information. If you have any other questions, I will try my best to answer them.
Wow, after hearing your description, I want to recommend "Dragon's Roar". The main character in this book does use a whip as a weapon! Furthermore, the main character's father was the Nangong Nobles 'number one whip, Nangong Pojun! I suggest you carefully read this slow-moving but worth chewing and swallowing wuxia fantasy novel. I hope you like this fairy's recommendation. Muah ~š