I know I'm late on this but watching episodes of Mao Mao heroes of pure heart does make me wonder what's really going on with the Ruby of pure heart valley.
The episode "Zing your heart out" makes me think that a monster or something else is trapped inside the ruby and is trying to get out. When Adorebat was trying to fight it and she was attached to all the lines etc in her mind. (Like a puppet on strings.) For a minute all the strings she was attached to did look like a monster's face.
Maybe a long time ago there was something evil trying to destroy the kingdom etc. And the only way to stop it was too trap it in the ruby. (And maybe use it's power to create a force field to protect the kingdom who knows?) Maybe it's also trying to control people who make a wish so they can get out or make them help it finish whatever it was trying to do before it was trapped.
I'm sure other people have had this theory or something close, but I just thought about it when rewatching certain episodes.
While I hope we get more answers in season two, I'm glad the show is taking it's time with that storyline. Even if we didn't have the episodes "Zing your heart out." Or if they had rewritten the second half orangasnake begins and we didn't know anything was up with the ruby, it's still a great show that's fun to watch.
