A quinque wielded by Kishou Arima S-rated. A highly sophisticated Koukaku lance. It possesses an offensive mode that shoots out piercing underground spikes, and a defensive mode that opens up into an absolute, geometric shield barrier.
On a roll of 9 or higher (60% chance), Kishou Arima drops the custom item "Ixa". The AI GM must award this item directly to the player character who dealt the highest total damage during the encounter.