The World Tree

"Mana Crystals?" Shane repeated as he realized that these Honey Jars are all quite expensive. After all, they only have one type of Mana Crystal, which is the one with the highest purity possible.

A single one could normally be traded for a Dwarven Weapon in the Fairy Realm Apocalypse.

"Is that the only thing you want?" Shane asked.

"No!"

The pixies then started giving him other options.

"Those buttons you have!"

"Broken glass!"

"That weird coin in your pocket!" 

'Hmm? How did they—' Shane thought as he touched the Gold Coin in his pocket chest.

Shane upgraded two of these gold coins to a legendary item. As a matter of fact, the one in his pocket was one of his life-saving items, and he always kept it with him.