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How do I get Rubies?

You gain Free Rubies when finishing a chapter in a story or reading a story with a friend for the first time. They can also be gained by opening the treasure chest on the Home screen or linking your account to social media for the first time.

Also, you can exchange the Coins you gain from Login Bonuses and Free Missions for Rubies. The Exchange window can be opened by tapping the Coin icon at the top of the screen.