Reviews of the first episode are mixed, often highlighting its adherence to established tropes.
: To survive, the pair attempts to register at the local Adventurers' Guild . During the aptitude test, they discover their magical potential is "off the charts". Taichi is so powerful he literally cracks the guild's testing orb, while Rin is identified as a rare magician capable of manipulating multiple elements.
: Ordinary high schoolers Taichi Nishimura and Rin Azuma are suddenly transported to the fantasy world of Altianutz. They are immediately attacked by a vicious monster—the obsidian horse—but are saved by a group of experienced adventurers.
Watch legally on Crunchyroll . While the full series typically requires a subscription, you can access it through a 7-day free trial of Crunchyroll Premium. Episode 1: "The Lost Ones from Another World"
The series premiere establishes a classic fantasy "summoning" narrative with high stakes and immediate power escalation.
: A highlight for many viewers is the relationship between Taichi and Rin. Unlike many isekai where the female lead is secondary, Rin is treated as a co-protagonist with her own massive power and a "give-and-take" dynamic with Taichi.
: The episode ends with the Guild Master referring them to a legendary mage named Lemiya , who agrees to take them as her apprentices after seeing their raw, unrefined power. Reception & Critical Perspective
: Critics note that the show follows a very traditional, almost "throwback" style to early 2000s fantasy anime. It is often described as "streamlined" and "generic" but enjoyable for dedicated fans of the genre.