- Artistic interpretation: The anime and manga are two different mediums, and as such, there will always be some differences between them. The animators may choose to interpret the manga in their own way, which can result in changes to the character designs, the story, and the overall tone.
- Budget and time constraints: Anime is a much more expensive and time-consuming medium to produce than manga, so it is not always possible to adapt every single detail from the manga. The animators may have to make some sacrifices in order to fit the story into a certain number of episodes or to meet a certain budget.
- Target audience: The anime and manga may be aimed at different audiences. For example, the manga may be aimed at a more mature audience, while the anime may be aimed at a younger audience. This can result in changes to the content of the anime, such as the removal of violent or sexual scenes.
Despite these differences, monochrome factor anime and manga are still two great ways to enjoy the series. Each medium has its own unique advantages and disadvantages, so it is ultimately up to the individual reader/viewer to decide which one they prefer.