In a realm teeming with extraordinary monsters known as Fond Spirits, humanity discovers its greatest power: the awakening of Occupation Classes. These extraordinary abilities grant warriors the gift of Contract Imprints, forging unbreakable bonds between human and beast that transform ordinary partnerships into legendary forces. Each Occupation Class unlocks unique synergies with Contracted Fond Spirits. The F-level Manicurist enhances claws to lethal perfection, while the E-level Hunter masters pursuit and collaborative strikes. Rising through the ranks, the C-level Puppeteer seizes combat moments with devastating precision. The B-level Midwife tends to spirit births and blesses newborns with random enhancements, while the Mechanic evolves creatures into semi-mechanical hybrids. At the apex, the A-level Dragon Knight rides dragon-type spirits into unstoppable conquest, and the S-level Arch Warlock amplifies elemental fury while pre-sealing abilities for forbidden spell execution. Supporting this hierarchy stand specialized classes: the C-level Fitness Trainer, D-level Flame Thief, A-level Mysterious Merchant, and B-level Gourmet each commanding their own mastery. The Special Occupation Class "Brave" stands apart, transcending conventional limitations. This second work explores an entirely original Beast Mastery universe where strategic contracting and ingenious Class combinations determine the fates of civilizations, where Demon, Savage, Nether, and Damnation converge with the bonds between souls.