Matty takes Lurue under his wing. He recognizes her hidden talent and begins teaching her the "correct" way to use magic, correcting the distorted magical theories prevalent in this era.
Episode 2 Recap: The Strongest Sage Encounters a Monster In the second episode of The Strongest Sage with the Weakest Crest , Matty continues to navigate his new life at the Second Royal Academy while hiding his true potential as a reincarnated sage. Key Plot Points Shikkakumon no Saikyou Kenja Episode 2
Tell me what you're interested in and I'll pull the details. Matty takes Lurue under his wing
It becomes clear that demons have been intentionally spreading "chant-based" magic to weaken humanity's combat speed over centuries. Character Dynamics Shikkakumon no Saikyou Kenja Episode 2