Awaken the forbidden entities and battle against unforeseen calamities; welcome to Missaga University, "Secret Keeper"

The world is perishing.

Centuries ago - "Melt and Erosion" arrived silently. Life, reason, memory, and everything humanity had imbued with "meaning," were gradually erased as all traces of their existence dissolved away.

Yet people remain unaware of it.

Confronted by this hidden and ineffable catastrophe, Missaga University—one of the few aware—has resolved to awaken powers sharing the same origin as the disaster and link humanoid weapons teetering on the brink of madness to withstand this looming crisis.

If everything is destined to be forgotten, will you bear the secret forward as proof that the world once existed?

The tombstone stands as evidence; may the silver key light your path ahead.

Welcome aboard, Keepers of Secrets.

Dwell in fog-shrouded England, carrying the era's secrets through life and death.

Amidst melting crises, elegance and power walk hand in hand.

Assemble your unique card lineup and awaken those who share the disaster’s origin.

Roguelite level-breaking gameplay uses strategy to uncover forbidden truths.

Unit-driven narratives pursue truth within a fractured world.