Well, from what I know, identity is a big theme. The protagonist's change to having twintails is not just a physical change but also affects their sense of identity. Also, the theme of acceptance might be there. Accepting this new form and the consequences that come with it in the story world. And there's probably a theme of humor as well, given the rather unique concept of the light novel.
I recommend "Sister Zhaoyang, You've Lost Your Horse Again" and "The Demon King's Concubine" to you. The female leads are all tsundere characters. The female protagonist of "Sister Zhaoyang, You've Lost Your Horse Again" was gentle in front of outsiders and arrogant in front of acquaintances, but she was actually unfathomable. The female protagonist of "Demon King's Concubine", Zi Mei, was extremely arrogant. She had the capital to be arrogant, but she also had the ability to be arrogant. I hope you like this fairy's recommendation. Muah ~😗
"The List of Forbidden Magic Books","The List of Forbidden Magic Books"," Shuusi in " Love Plus ", Satoshi Uebai in " Love Plus ", and Misaka Mikoto in " The Super Electromagnetic Gun of Science " were all female leads with tsundere characteristics.
I recommend to you a novel called "Don't Say I'm Invincible", an urban supernatural novel. It's only for free! Although the protagonist doesn't think he's invincible, he's definitely stronger than you! This novel has two excellent old books, and the quality is guaranteed. You can also read the old book, The Strongest Dominator of the City. I hope you like this fairy's recommendation. Muah ~😗
Yes, I recommend "The Reborn Princess Is Very Tsundere." In her previous life, the female lead married a scumbag because she was stupid and naughty, but after her rebirth, she became the most favored princess. Her tsundere smile made the crown prince and wangye chase after her, but she was only tsundere by herself and was not moved by anyone. I hope you like this fairy's recommendation. Muah ~😗
One similar light novel could be 'KonoSuba: God's Blessing on this Wonderful World!'. It also has a unique and comical story with interesting characters in a fantasy setting. Another option is 'Overlord'. It shares the aspect of having a protagonist in a different kind of world with their own special abilities and circumstances.
Love and attraction are common themes. Despite the tsundere nature of the vampire, there is usually an underlying attraction to the other character. For example, in many stories, the vampire may act cold on the outside but is secretly in love.
One great 'Naruto x Tsundere' fanfiction is 'Hidden Feelings'. In this story, the tsundere character is constantly denying her feelings for Naruto while secretly going out of her way to help him. It has a really interesting dynamic that keeps you hooked.
One common theme is the clash of personalities. The tsundere's prickly exterior and Naruto's upbeat nature often collide at first, creating comical and interesting situations.