One day, the hero gets a mysterious bill. From that day on, he gets caught up in the turmoil over the resurrection of the anciently sealed demons hidden behind the eerie card game `New Youkai Den`. The hero travels all over Japan to prevent the demon from resurrection. There are four game modes: `story mode`, `fighting mode`, `battle mode`, and `trading mode`. In `Battle Mode` and `Trading Mode`, you can play and exchange with your friends using a communication cable. There are 298 types of cards by Shigeru Mizuki, the best youkai painter of our time!