Cash Shop Specials 9/17 - 9/23

Remember that 1 coin does nothing. It costs 3 coins (270 nx) to enter the normal dungeon, and 5 coins (450 nx) for the premium one. So, pretty similar to Red Leaf High.
It remains to be seen how many paid entries are needed to get that medal.

Right, I also remember reading on the notes that the reward can be 3~5 coins or something. I wonder how rare those might be. :/