¿Puedo utilizar 아니라고 en lugar de 아니요? ¿O es que acaso "아니라고" tiene una función diferente a "아니요"?

Question

Answer

Hi, I'm Jina!

The nuance is different.
I would say

아니요 is "No",
아니라고 is "I said No"

ex) 이거 맞아요? (Is this right?)
      아니요. (No.)
      뭐라고요? (What?)
      아니라고. (I said No.)

I'm sorry that I can't help you in Spanish,
but I hope it will help you (: