NAME THAT CHARECTER!

I'll give you 3 hints of an animê character I'm thinking of. Guess right first, you'll get 3 props. Lets Go!

Hint #1) “We are all like fireworks. We climb, shine, and always go our separate ways and become further apart. But even if that time comes, let’s not disappear like a firework, and continue to shine forever.”

Hint #2) I have white hair

Hint #3) I am relatively young por Shinigami standards, and have the appearance of a child.