The Misfit of Demon King Academy (2020)

S2E15 Institute of the Gods

Title: Institute of the Gods Plot: Erdomaid leads his students in the perilous art of dragon slaying, testing their skills against a real dragon that has been summoned for the occasion. Meanwhile, Anos and his companions stealthily enter the dragon's lair, finding themselves in the Underground World, home to the dragonfolk known as Draconids. They are joined by Ahide, who had attacked them the night before, as he guides them to the legendary Institute of the Gods, Everastanzetta. There, Anos discovers his unexpected connection to the ongoing event known as the “Judgement Selection.”