ZDC Digimon Master World デジモン Tadao Part 29 Other Preform Attribute Leveling, Mill Pair Level Balancing End and Repeatable Quest Leveling 2 plus Exa Questing Start

Maybe the Forest RepatableQuest can also be used to level Spirits as unlike ScamKings DMO where you can only get Boko usually in the shop you can get it free in DMW by doing daily Quest and with 3k+ exp it is a lot easier to level spirits here.