What does it mean for something to be "real"? Physics says your car is not actually real. There is no "car" particle or field in the physics ontology, there is no physical experiment we can run to definitively test whether something is a car or is not a car, such that aliens that evolved on another planet would agree perfectly with your assessments. If physics is our best theory of what actually exists, then your car doesn't really exist.
Analogously, this is the crux of the hard problem of consciousness: is the qualitative experience of consciousness actually real, or is it reducible to third-party objective facts, like every other phenomenon we've encountered, and so the irreducible properties it seems to have are actually an illusion that is reducible to non-conscious particles and fields?
Given the way you've phrased your post, that the brain "implements" consciousness, I expect you might agree that such a reduction is ultimately possible. In that case, you too might be an eliminative materialist, which asserts that consciousness does not really exist.
That said, all materialists agree that phenomenal experience requires an explanation, it's just that they assert that explanation will come from neuroscience. Antimaterialists assert that no such explanation is possible.