The most powerful disciple in history, Kenichi, and Detective Conan's updates were slow and troublesome because both of them were Japanese manga. They were long serials that required the author to invest a lot of time and energy in creation and modification. In addition, due to the influence of Japan's economy, politics, and other factors, the livelihood of manga authors was also under great pressure, so the speed of updating would also be affected. In the creation, the author needed to consider the story, character creation, visual effects and many other aspects, so it took a lot of time and energy to perfect the work. In the process of updating, the author also needed to constantly communicate with the readers to adjust the story and improve the character image to ensure the quality and attractiveness of the work. Finally, he had to consider the needs and expectations of the readers. The readers wanted to see new content as soon as possible, and the authors had to balance their own creation with the readers 'expectations, so the update speed was so slow and troublesome.