For such a princess sister, being a brother is the most tiring, haha, she asks you for everything, you have to protect her well, and her parents will often nag you, but how to say it, every brother will feel very happy, having such a lovely sister can really add a lot of fun to your life, but don't spoil her too much, be careful that she will be inseparable from you in the future.
On her birthday, lively little girls still prefer beautiful things, and there are some brands they prefer, such as Chanel perfume, Hello Kitty, etc. Accompany her to choose clothes, shoes, etc., or give her a new hairpin or MP3.
Of course, you can also go to related websites to check out some DIY small gifts. Recommended gifts include chocolates with customized words, makeup mirrors with customized patterns and words, and cartoon bouquets made of cartoon plush toys. You can go and have a look, I hope it will be helpful to you.