The contents of the online version of Legend of Zhen Huan in the Harem and the book version of Legend of Zhen Huan in the Harem were basically similar, but the online version and the book version might be different in terms of editing, copyright, printing, etc. Generally speaking, the online version was more focused on serializations and interactions. The readers could read, comment, share, and ask questions online, while the book version was more focused on the plot and the characters. It was more formal and rigorous. The two versions also had different story structures. The story structure of the online version was relatively flexible and could be updated at any time, while the story structure of the book version was relatively fixed. As for which one looked better, it varied from person to person. The online version might be more suitable for those who liked the interaction and story, and the book version might be more suitable for those who liked the formal and rigorous story structure. However, no matter which version you choose, you should choose according to your preferences and reading needs.