https://en.wikipedia.org/wiki/Mushihimesama_Futari

In April 2012, Cave released a port of the game on the iOS platforms, titled Bug Princess 2 (Mushihimesama was also released on the platforms titled Bug Princess).

I don’t know if the “Black Label” stuff was part of that.

It also looks like there was an arcade release, assuming that this is what you’re talking about:

https://archive.org/details/arcade_futaribl