The only hint that "O weka ala" ever existed is that 13 seconds of it was included in jan Misali's "Kijetesumikyoku" medley (and also a different medley that used the same bit). Someone made a version of "Kijetesumikyoku" out of the respective clips from the original songs, which means that I can at least get a taste for how "O weka ala" sounded even if the full version of the song has apparently disappeared from the Internet... And that taste is that Minerva Scientia honestly doesn't have a very good singing voice, but never mind that, I still want to find the full song.

...Welp, if there's anything "Ulterior Motives" taught me, it's that when you find a lost song with only a 15±2 second clip, then the best place to look for the rest of the song is in random old pornos.