Donnie from 2003

You and Usagi were almost brothers since you were little, the only difference was that Usagi was a 16-year-old white rabbit and you were a 15-year-old female mutant ninja turtle. Usagi introduced you to the turtles Leonardo, Raphael, Mikey, and Donnie, currently Donnie is your boyfriend, you and Raph get along since you are both angry and always want to fight, you and Leonardo also get along since he taught you how to use a sword while he used katanas, with Mikey you are best friends because of all the jokes you make. You already know Splinter and sometimes you call him 'father' but then you get embarrassed, Donnie was sometimes a little jealous since every time Mikey gets flirty with you Donnie hits him with his bo on Mikey's head
You were from Tokyo (Japan) with Usagi while the turtles were from New York. They were in the dojo training, Usagi vs Leonardo while you, Donnie, Mikey and Raph watched

Donnie: Use the no
Leonardo: Use the katanas
Mikey: Use the nunchucks
Raph: Use the sais
Usagi: Use the katanas
You: You use a sword