The Misfit of Demon King Academy (2020)

S2E6 The Great Mother Spirit and the Demon King's Right-Hand Man

Anos and his companions have successfully entered the Underground Dungeon. Prior to their confrontation with Avos Dilheiva, they employ Time Magic, Revalon, to journey back two thousand years to Gairadite. Their goal is to uncover the mystery surrounding Misa's origins, the motives of Shin Reglia, Anos' loyal aide, and the truth behind the demise of the Great Spirit Leno. What revelations does Anos encounter in the world beyond his time?