The story
Fiction and adapted settings written by Akitsora Gaming for this title, including invented dialogue and events. This is not a historical or folklore reference. The rules and specification tables define the gameplay and math.
Gears hum softly in the old mansion where brass rails run down the hall,
and a tea-serving doll holds a golden bowl, waiting by the secret box.
I. The Tea-Serving Doll on Brass Rails
In the parlours of old Edo, master craftsmen delighted their guests with the karakuri tea-serving doll. Set a warm teacup upon its wooden tray, and the whalebone spring and wooden escapement inside would set its feet clicking across the mats; lift the cup, and the doll would halt and bow its head politely. Every tiny wooden gear inside its chest is carved by hand, turning simple clockwork into a warm gesture of hospitality.
Above the reels of Karakuri Mansion runs a polished brass rail where that same mechanical doll paces back and forth. On any spin, it may step out along the track and pause over a reel, bowing graciously as it pours out golden tea bowls that turn every regular symbol on that column wild. The soft clatter of its wooden feet along the brass track signals that a fresh wave of golden wilds is on the way.
II. Turning a Gear When the Floor Jams
Every corridor of the mansion is a puzzle of sliding panels and pivoting floorboards. When a hallway seems to end in a blank wall, the master of the house simply reaches for a brass gear set into the timber — with a sharp click, a square of the floor rotates clockwise and a hidden passage opens. Behind the cedar wainscoting, counterweights and brass pinions wait silently for a hand to set them in motion.
The reels work the very same way. Whenever a spin or cascade comes to a complete halt with no winning ways left on the board, any unturned gear rotates the surrounding three-by-three block of symbols ninety degrees clockwise, giving a deadlocked grid a fresh alignment and another chance to cascade. What looked like the end of a spin suddenly opens into a brand-new chain of cascades across the wooden floor.
III. Marquetry Panels of the Secret Box
In the innermost study rests a traditional Hakone marquetry secret box, crafted from interlocking geometric woods without a single keyhole in sight. To open such a puzzle box, one must slide its fitted wooden panels in a precise sequence known only to its maker. Walnut, cherry, and boxwood inlays form delicate patterns across its surface, hiding the seams from casual eyes.
Collecting enough secret-box keys after the cascades stop opens the Secret Box feature. Inside the candlelit study, every gear that lands locks onto the grid for the entire round, and each win turned up by a rotating gear slides open another wooden panel while raising the overall multiplier. Piece by piece, the intricate marquetry slides apart in time with the turning gears on the board below.
IV. A Hidden Box Within a Box
When the last outer panel slides free and the lid springs open, the puzzle box awards its first treasure prize and a jump in the multiplier — only to reveal the craftsman's finest trick: nestled inside sits a second, even more intricate secret box waiting to be solved. Discovering that second box tucked neatly inside the first captures the playful spirit of Edo mechanical mastery.
With the locked gears still turning on every stalled cascade, each new gear-driven win slides open the panels of that inner box as well, until the second lid pops open to award the mansion's grandest prize and push the multiplier to its peak. Brass gears chime in harmony across the study as the innermost compartment finally yields its long-guarded treasure.