D grade change mission

You need to complete the following tasks to advance to D grade (in this exact order):

• Change your grade to E (see E grade change mission)
• Gather enough XP for at least level 66, according to the number of Rebirths (Levels)
• Gather 7 D Grade change Special Items by finishing the Tournament in the TOP3 (on the winner side)
• Kill the Hyperbasher Of Castor