Saikousoku Fall in Love (Papi & Suu Duet)

I decided to edit both Papi’s and Suu’s “Saikousoko Fall in Love“ version from their character CD’s to create a duet. Considering on doing the other monster girls. Who should I do next? Saikousoku Fall in Love (Centorea & Rachnera Duet) - Saikousoku Fall in Love (Miia & Mero Duet) -