One day, Ritsu Kodo, a young gamer, is suddenly whisked away into the digital world of the game he plays! There he meets Pulsemon, the Digimon he's been training in the game!! While initially bewildered by this sudden turn of events, Ritsu learns that Pulsemon summoned him as a Tamer to help break a curse preventing Digivolution. And so, he promises to help Pulsemon Digivolve...!!