Thank you everyone for your answers! Now I get it :)

HI. "Lo que sea"....it is a term that means: anythings. Shows lack of interest in something special.

It is kind of hard to literally translate, but it is sort of like " whatever" or "whatever it may be."

Anything at all

Hola Anastasia, We use “lo que sea” in order to to express our indifference or the feeling that we are open to any option. For example: Qué quieres hacer hoy? (What do you want to do today?) – lo que sea (any option is ok with me, I'm up to everything) . I hope this helps with your question.