: When ancient inscriptions in the ruins are accidentally destroyed, Touya uses his smartphone to create physical copies of the photographs he took, impressing the Duke with his "null magic".
: The episode ends on a cliffhanger as Touya learns that the Duke's brother, the King, has fallen ill. Where to Watch Isekai wa Smartphone to Tomo ni. (Dub) Episode 3
: While exploring ancient underground ruins for treasure, the party encounters a powerful crystal monster that is resistant to most magic and physical attacks. Touya eventually defeats it by applying Shogi-like strategy to find its core. : When ancient inscriptions in the ruins are