In the first episode of "Nanatsu no Maken ga Shihai suru," viewers are transported to a unique setting: Kimberly Academy. This is a school where students learn magic and swordsmanship, with a focus on the sword. This approach already sets it apart from the typical magic schools seen in various anime series.

The main character, a student named Oliver Horn, is introduced. He is skilled and comes from a respected family. Oliver carries a mysterious aura, as he seems to possess an unexplained magical protection.

We also meet another student named Hibiya Nanao. She differs from Oliver in that she excels in combat rather than magic. Her backstory hints at a life of fighting, and her special requirements for admission to the school suggest potential twists in the plot.

The episode also introduces other characters, such as Pete Reston, Guy Greenwood, Katie Aalto, and Michela McFarlane. Each of these characters contributes to the dynamics of the school environment and the unfolding story.

An important piece of information is given by the school: it has an 80% survival rate. This signals to viewers that this is not a typical school—it is a place of high risk and great danger.

By the end of the episode, many open questions and plot points remain, likely setting the stage for the story to unfold in upcoming episodes.