yo dawg, here is your solution: https://forum.ripper.store/post/1986076
mochifitter profile comes with the newer unity package for velnica, however, it only supports forward conversion.
Final bump, announce for closing, and thank you to all for suggest~
If you did not get this time, no worry! I do gift release sometimes, so there is other chance if you have cute things.
Thank you for participate~!
