I don't think it can possibly replace Dragon Story! For one thing it has the so annoying limited storage space that made me hate Restaurant Story 2 and Farm Story 2. You get stuck a lot in the beginning of the game. Can't breed if you can't harvest the right fruit, and if you're out of storage you can't harvest. So I'm waiting for something to sell in my shop, so I can make room to harvest... No, not my idea of fun.
But the dragons are very pretty with lovely movements.