Thank you for the details.
A combination of the above described systems (Black's barn like + list popup) was originally made, yet it didn't provide the desired degree of 'action' :3 , although i was testing with low number of characters. I am considering adding multiple nests, but it'll a bit of time (not sure if it'll be up for an update or already in Ep 2). The ranch place (with areas for training like in the nearby one) are supposedly for the future (Ep 2 or later), when Nishy reaches a high enough popularity level.
Cheers ;)