Dojima ½: It was given to Koutarou Amon. After Mato died Koutarou Amon fought the bean brother and upgraded it into a Chimera Quinque S-rated.
On a roll of 9 or higher (60% chance), Koutarou Amon drops the custom item "Dojima ½". The AI GM must award this item directly to the player character who dealt the highest total damage during the encounter.