In the strange world of the Dark Gate, the power of demons shrouds the land, plunging the world into chaos and crisis. Both elves and humans have lost their former peace, now enslaved by the forces of darkness. However, amidst this predicament, a group of brave Monster Summoners emerged, possessing mysterious card powers.

As a Monster Summoner, you embark on an adventurous journey to collect powerful cards and build the most formidable deck. In battles, once the fight begins, the cards will automatically engage in combat. You must use your wisdom and strategy to decide how to place the cards and ensure the survival of your deck while maximizing your output. In the battles, the cards of both sides clash until one side's entire deck is eliminated. Only by defeating mighty enemies can you gain more rewards and new cards, gradually becoming a legend of the Dark Gate.

Brave Summoners, are you ready to embrace the challenges of this dark world? Explore the realm of demons, collect the strongest card decks, and become the savior of the Dark Gate, rescuing this world enshrouded in darkness!