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Knowledge System

Knowledge System upgrade icon

Creating Sushi now gives them +1 EXP toward leveling up. Sushi Levels give bonuses to various Sushi stats, viewed from the BONUS tab

FieldValue
RoomSushi
CurrencyRibbons
Base cost15K Ribbons
Cost growth2x per level before New Game+ adjustment
Max level1
PrerequisiteRequires The Salt Shaker.
Cost behaviorNormal room upgrade. Room cost reductions can apply; New Game+ makes cost growth steeper.
Important unlockYes

This upgrade unlocks a system or feature directly rather than applying a simple stat modifier.