I've started trying Meowruto RPG.
Once you select the boss, unselecting it doesn't do anything, you can only fight the boss for ever. Even switching to the next stage doesn't stop the first stage boss boss fight.
Once you change stage, you can't go back to the old stage.
Trying to fight the stage 2 boss freezes the game, requiring a reboot and (in my case) a loss of XP.
I can see that this is a very early stage work in progress. Are you planning to have similar areas for each of the eight buildings?