Trash Contract Beast? My White Fox Has Demon Blood - Episode 3

At an academy, Finn's apparently low-ranked Spritkin unexpectedly emits overwhelming power, sparking disbelief among instructors who suspect trickery. Despite rules mandating reclassification for unidentifiable Spritkins, authorities insist Finn remain an F-tier, threatening to enslave him unless he proves himself. Finn's status is put on hold with revoked privileges and forced labor at Blackstone Mine during a three-month observation. The revelation that his Spritkin is a sealed juvenile Nine-Tailed Fox, an ancient demon beast, hints at untapped potential. Finn must now survive the harsh trial and compete in the academy tournament to avoid lifelong slavery.