Voltoyle

Hello everyone, I'm new to the game. By the time I started playing, I noticed there was a Valentine event in progress, which gives some heart shaped coins as reward. If I click on those in the inventory, it says they can be traded for items by visiting Passrunerk. I searched onto the mini-map and it can't find anything named like that, neither an NPC nor a place. Any ideas? It says the coins can be used only up to the end of the event, but I'm lost. Thanks in advance for your help!