After watching the anime, he felt a sense of loss because of the difference between the anime and the real world. Comics were usually fictional stories, plots, and characters that were carefully designed and exaggerated to attract the attention and resonance of the audience. However, when the audience returned to the real world from the anime, they would find that there was a huge gap between the things and plots in the real world and the images and plots in the anime. This gap would cause the audience to feel lost. In addition, after watching the anime, the audience might feel some kind of emotional resonance, such as love for the story, sympathy for the characters, or thinking about the real world. When the audience brought this emotion to the real world, they would also feel lost. In summary, the reasons for the sense of loss after watching the anime were many, including the gap between fiction and reality, the shift of emotional resonance, and so on.