so before dir en grey who had used the black liquid thematic concept?
and since then? just ayu?
and the people on fire? who else has used that?
there's always gonna have been a first, and to justify your statement that they're thematic concepts that EVERYONE uses, I think you need a few more examples.
Otherwise we have an originator, and then a redo.
I'm fine with her redoing concepts, right now I'm just challenging your statement.
__________________

|