Spoiler Free!

When making a story, one of the main things an author should consider is pacing. Having the perfect pacing is essential to make the reader not feel overwhelmed. Dead Dead Demon's Dededede Destruction is an example of a flawed, yet great manga (which is slated for an anime release) that suffers from major pacing issues in the second half, and minor ones throughout the story. DDDDD is a manga that ran for 8 years, thanks to the hard work of mangaka Inio Asano. I have not read any of Asano's work before, nor did I know this manga's story, but the art style intrigued me; the way that his characters looked was unlike any other, the faces felt very different from the usual anime-esque/like faces. The backgrounds felt real, as if I was standing there at the same moment as the character. The look of his characters matches their personalities perfectly, with each detail also assisting to giving the reader more information about the characters.

Simply put, there is a alien threat, and the government is tasked to stop it, but what the story focuses on are the daily lives of girls in a post-apocalyptic world. The first half is a good introduction to both the main and side characters. The main characters overall are very good- there is Ouran Nakagawa who initially appears as a sort of hyped-up gamer girl, she gets her character development after meeting Keiba Oota, who greatly compliments her character by helping her emotionally. In a major twist, although she forgets, Ouran and another main character (trying not to put spoilers) change the present and future and make major changes to the world around them. At the beginning to the 70% mark her character is done perfectly, and the twist is excellent. The major problem is after that threshold, the speed of the story increases, for a certain time (around 8 chapters) she isn't even mentioned, then at the end, it acts as it her arc wasn't even there. The next main character is Kadode Koyama, who is mainly complimented, and you could even say has most of her character development made because of Ouran Nakagawa. She is a chill, down to earth, teacher loving, third year (at the start of the story- refers to third year in high school) who, like Ouran, her development is weakened after a point within the story. Last but not least, there is Keita Ooba, whose existence is pretty much a walking spoiler (even though he is part of the main cast before the end of first half). So, while I won't go into detail about him, his character development is similar to Ouran and Kadode, in which it is stalled after a certain point

Some side characters are done very well, such as Kenichi Kohiruimaki for his relationship to and events with another side character, Tarou Miura as his backstory is explored more thoroughly, and Outan's brother, who we learn is more complex than he may initially appear to be. Other side characters unfortunately don't get this same degree of development treatment - Hikari Sumaru barely complements any other characters, and her morals make it difficult to follow her motivations. All the arcs are paced very well until the beach arc, which is the threshold I mentioned before. Characters that once were relatable and understandable now are not (or their relatability are much lower), and the final twist took such a left turn (also could use something like "came out of nowhere") that no one could've expected it. The final arc also feels quick, but the pacing problems are much more apparent from the beach arc ----> 2nd twist or beginning of final arc (mainly because the impacts and lack of information the 2nd twist has on the final arc).

While the art and story are good at the beginning, all main characters and even some side characters suffer from the pacing after the threshold, and the ending, while not bad within itself, suffers from everything that comes before it. Sure, it has issues, but there are so many good things that it would have to get an 8.5/10 score.

Thanks @ZNote for helping me with this review. Seriously, without him the review would have so many errors!