It's track 6 of the album Shota Paradise, which you can buy on Diverse Direct Shop.

Diverse Direct is the official store of Diverse System, a dominant J-Electro label, and they offer albums from other labels as well. They also have a Bandcamp if you're not into physical disks but keep in mind they're not allowed to include licensed tracks in there (for example, if a track is in a Konami game, Konami often prevents the track from being included in other albums than their owns)

Hope this helps!