If the user's base level is lower than 175, increases EXP gained from killing demihuman race monsters by 15%. If the user's base level is 175 or higher, increases EXP gained from killing demihuman race monsters by 7%. [Bonus by grade of enchanted headgear] [Grade D] Increases EXP gained from killing demihuman race monsters by additional 1%. [Grade C] Increases EXP gained from killing demihuman race monsters by additional 3%. [Grade B] Increases EXP gained from killing demihuman race monsters by additional 5%.