The plot of each episode is almost identical, yet the subplots of each scene are completely different - from the costumes to the cutaways, from the characters' positions to the background music - which can be seen as a wonderful "subplot" teaching method. This can be regarded as a wonderful "subplot" teaching. Because the images are so different and the content is unchanged, some viewers made videos of several episodes of the anime playing at the same time during the broadcast, and the final effect of eight episodes of the anime playing at the same time is maddening - perhaps only true members of the group would watch every episode. (Nagato Yukari has all the memories, so that would also be the most fatiguing.) The anime ends when the episode loops to the 15,532nd time, and the novel ends at 15,498. The reason for the end is that Hollow has everyone hold a study session, fulfilling Ryoga Haruhi's wish. "As one of the representative works of the "Ryoga Haruhi" series, repeating the episode almost eight times not only pushes the limits of the value of the entire anime industry, but also challenges the psychological tolerance of the viewing audience. It also challenges the mental capacity of the viewing audience. Kyoto Animation tried to use this format to let the audience feel the boredom of the "endless August" experienced by Hollow and others. However, this method of presentation has caused great controversy.

Supporters say it's a bold move by Kyoto to give viewers a new sense of immersion in a long, recurring period of time. "The Endless Summer" allows everyone in the real world to experience what it's really like to be on the receiving end of such long repetitions, and conveys to viewers that if they can't stand eight episodes of repetition, they can't stand even longer repetitions. Opponents argue that August lacks respect for the audience, and that letting viewers watch the same episodes over and over again doesn't allow them to experience the feelings of the characters in the show, but only makes them bored and fed up with the animation, so that most of the audience skips over August directly.