Great game, but contains many flaws. For starters, the drop rates are so bad, there are worse than puni's. Another thing is that the game lacks content. All the content that is available in the game is not easy for players who are starting off fresh, giving them a disadvantage to catch up. If you want to play a better yokai game on your phone, play puni. It can be hard to work your way to the top in puni, but the events (atleast in the beginning) are easy, and the campaigns they do every now and then make it even easier to get better in the game. However, I still think you should give this game a try, despite its many flaws.
