I think it's more a "concept" mini album.
It's different than their previous releases. Songs are quite short (2～ 3 min) and they are pretty agressive with few clear voice.
And unfortunately production is less good than singles (recordind sounds like it was in garage).
So it's probably not an "official release" 'cause they don't have new look, there is no promotion about it, no video, and they never played theses songs live.
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