https://www.jvcmusic.co.jp/flyingdog/-/Discography/A023615/VTCL-60495.html
https://www.youtube.com/watch?v=1mdHxygKEzo
If this song is actually cut ver. as indicated in tags, "(Cut Ver.)" should be added to the song's title according to the ranking criteria. So it should be "Gunjou Infinity (Cut Ver.)"
If the drain time of each difficulty is...
...lower than 3:30, the lowest difficulty of each included game mode cannot be harder than a Normal.
...between 3:30 and 4:15, the lowest difficulty of each included game mode cannot be harder than a Hard.
...between 4:15 and 5:00, the lowest difficulty of each included game mode cannot be harder than an Insane.
Primary metadata sources are missing. In this case, you'll need one for the song and it's artist. After you found the links, either add them to the beatmap's description or post them as a note in this discussion page. See https://osu.ppy.sh/wiki/en/Beatmap/Primary_metadata_source for more info.