This is a port of the chart for "GO MY WAY!!" from Project Diva PC HD. The game usually had very bad syncing (though the chart itself was flawless), so that was adjusted and fixed in this port.
If you want to watch the originals (after fixing the sync issue in that game's editor), you can watch them here:

Easy chart:
https://youtu.be/Zmgf-n3dlZI

Hard chart:
https://youtu.be/HIlt9hRRtfg