Aoba was kidnapped and taken to Venezuela at the age of 13, and there she joins the secret organization Angel, which was created by the Venezuelan government to prevent ancient Jinki from invasion. Angel uses modern Jinki to battle ancient Jinki, and Aoba pilots the Jinki robot Moribito-2. Soon after we get to know Aoba we meet Akao, and she is the main character of the 1991 Tokyo scenario. Akao cannot recollect anything prior to three years ago, and she also pilots the Moribito-2. 
 
The story of Jinki is hard to follow. The past and the future plots go back and forth. Aoba shows up in 1991 too. It makes me feel like I need to take notes to figure out what happened and when. That is not a good sign for an entertaining anime series. I just want to watch and enjoy without having to go back to previous scenes. Even though the connections between the two characters are revealed later, it still bothers me that the show relies on the colors of hair to distinguish Akao and Aoba. Aka means “red” in Japanese, so of course she has red hair while Aoba (yes you guess it, Ao means “blue”) has blue hair. It is not only too obvious but also shows a lack of imagination.
 
The animation has a good combination of retrospective quality and modern style, and the battle scenes are exciting enough for a PG-rated animation. The idea of the feminine characters operating the masculine robots from within is not uncommon in the anime world, but with interesting plots and characters, it can still attract many anime fans. However, if it is required to keep track of timelines and events AND none of the characters is distinct, such anime is not really worth watching. 
 
The confusing story and undistinguishable character designs are enough to make Jinki Extend an inferior anime series. I am used to time-travel anime series, but I found myself scratching my head. Although this is supposed to complete the series, Jinki Extend left me with more questions than answers.