Anime has a high potential to provide a rich and thought-provoking story, but it wastes this potential for many reasons.

One of the most important ambiguous points of the story is Canto itself. A great power that is even able to manipulate genetics, and an extraordinary and god-like power is introduced in the story, the creation of which will change the entire planet. The anime does not give any answers to the questions it raises about Canto and completely avoids it. What is the origin of this power? How did only 0.3% of the population get this power? Why didn't other humans get this power? At least the anime should have answered these obvious questions

The next point is the lack of narration of story line of Maria and Mamoru characters , which ends in one of the biggest plot hole in the story. The anime does not mention the fate of Maria and Mamoru and leaves the story of these two characters who play a very important and key role in the story.

anime has a very weak Setting and plot logic, full of paradoxes and Plot holes. For example: How is it possible for a society to know the advanced topics of genetics but does not have electricity and uses lanterns to light houses! (The whole society have primitive technology) as if only the topic of genetics has reached the new world from the past civilization! The idea that humans will bring primitive and prehistoric life in the distant future due to the destruction of civilizations is not a bad idea, but the implementation of this idea must be completely logical. This idea is logical when all the knowledge of the current civilization is lost or inaccessible, the idea that humans consciously abandon knowledge and technology is completely illogical.

The more anime goes on, the more disappointing it becomes, anime raises countless unanswered questions, but the main disappointment is that the few answers it gives are often conflicting. story has such a sloppy and chaotic narration, as if they have glued 5 different anime together and turned it into one anime. Each anime arc belongs to a different anime and there is not much story connection.

But one of the other negative points of the anime is the lack of long shots and overviews of villages, cities, forests, and places, and the anime does not give the audience any visual understanding of the location and story world (and world building). For example: It is not known which village was attacked or which village was destroyed. camera is always very close to Saki and the characters, and most of the time there is no overview from the character.