Before You Know It, You’ve Mastered Japanese History

Historically accurate combinations are stronger—learn history to win.

This game is a Japanese History × Deckbuilding Roguelike.

The more you play, the more knowledge you gain—until you naturally understand historical flow and cause-and-effect relationships.

Example: Public Land System → Shoen Estate Combo

"Taika Reform" → "Handen-Shuju Law" → "Konden Einen Shizai Law" → "Development of Shoen Estates"

Causal Combos — Historically Accurate Chains Are Powerful

Use cards in historically accurate sequences or relationships to trigger powerful [Causal Combos].

The deeper your understanding of historical context and causality, the stronger your deck becomes.

Example: Oda “Tenka Fubu” Combo

"Battle of Okehazama" → "Battle of Nagashino" → "Incident at Honno-ji"

Example: Hideyoshi Centralization Combo

"Sword Hunt" → "Land Survey" → "Kokudaka System"

Example: Sonnō Jōi Ideology Combo

"Rangaku" → "Kokugaku" → "Mitogaku"

The more you know, the more advantage you gain. The more you play, the more you learn.

• Deckbuilding Roguelike : High replayability with different cards and routes every run.

• Branching maps, shops, and events—your decisions determine victory.

• Historical Heroes : Each hero has a unique starting deck and strategy; new heroes unlock as you clear runs.

• From Asuka to Bakumatsu : 200+ cards and 100+ combos let you experience historical flow through your deck.

• Players who love deckbuilding roguelikes

• Players who enjoy history-themed games

• Players who want to learn while playing

• Players who want gaming time to also become study time

Before you know it, you’ll be knowledgeable—so go ahead and play.