"Energy Crystal's True Value"

Even though one-coloured energy crystals were the lowest kind of crystal and were only worth $50 per pinky-sized piece, Ainsley and the Sloan Family had no single energy crystal. 

Grandpa Yofan also didn't prepare energy crystals since he didn't expect Ainsley to earn a lot of money to reach the 11th floor, anyway. 

Now, without one-colouredd energy crystals, Ainsley couldn't enter the 11th floor onwards! 

The baby instantly looked at the Godfather spirit and secretly sent a message through telepathy. 

[Uncle, does the casino accept trading energy crystals with dollars?] 

Ainsley purposely didn't ask the casino staff since she's afraid that the casino staff would laugh at her for not having an energy crystal. 

Those who visited the 11'th floor would at least be a mid-ranked mafia family or from other forces on par with that level.