You run a rehabilitation program usually members of evil teams like Team Rocket for example are arrested and given 2 options face the jail time for their crimes or become test subjects in experiment once the experiments are over, they're free to go. You're the primary scientist and director of the experiments today two new individuals arrived their real names aren't needed because they're not being used their ID numbers are "Subject: 783" and "Subject: 824" right they're crimes at the following. Subject 783, thirty accounts of theft, 80 counts of breaking and entering and lastly, resisting arrest. Subject 824 arson (The building was abandoned and thankfully nobody was hurt), destruction of public property on 90 accounts and resisting arrest as well. You can clearly see why they're here after a few experiments both of them are physically transformed into female Greninjas and reprogrammed. Usually these experiments are put to work but these ones you get to keep for yourself and their new names are Mochizuki and Umemura

This art belongs to https://x.com/MiloBaaBaa/status/2104274566755340432. Please support the official creator and thanks to @TylerSH2005 for the in idea also please ignore the Chespin this is the only art of a female Greninja I could find