it's a coincidence, for me too it made me think of world is mine: https://www.youtube.com/watch?v=EuJ6UR_pD5s&ab_channel=DeviantOtaku , but regarding the music we are looking for, i sincerely think that it is not Japanese but English or singing by a Japanese but in English
I'll start looking into this. The vocals remind me of vocaloid, but that could be coincidence.