There's about like 4 merchants that sell it in the current Itchio update if I remember correctly, the cheapest being Mandy/Amanda. if you check your bestiary, it also has a very small chance to drop from all futa enemies.
Alright thanks, yah, i randomly had one, but fed it to the plant to get them as a pet. Not sure if its a bug or just how they are coded, the plant pet gets put into the squad as the leader, and you can change their position, as well as the fact that they have no actual sprite in combat. Also i dont know if their ability to find more money/items is working. Great game though.
Yes the pet is basically a test ATM, as there's only one and there's a lot with it that is wack. The battle sprite was removed since it was causing issues, including Punnai's. I was not aware of party members becoming leaders after Transformation of Kunnai. I have found the bug and fixed it for next update. Sadly with Itchio's state right now I can not assure when the next update will roll out. But it will be available on Patreon for sure, until this mess is fixed.