When Itzpapalotl and her demon army escape their prison, the Aztec gods find the descendants of their ancient high priests and imbue them with the powers to become Asutekku Arashi Shukkeger.
Dai Oōtoko Kami
The reason this Sentai is so detailed is that the author, while trying to teach herself Japanese, "translated" Aztec Storm for practice, adapting as she went. This is the same reason it is so similar to Aztec Storm.
Differences and Similarities Between Adaptations
Power Rangers: Aztec Storm
Asutekku Arashi Shukkeger
The Rangers were chosen by each deity for their perceived merit or actions.
The Shukkegers were descended from the priests of the Aztec deities and inherited their powers.
Black Ranger Mitch was an apathetic emo who only fought when forced to.
ShukkeBlack was a scientific pacifist who wanted to study the Tzitzimime, not fight them.
The Teotl were former tyrants reformed by the Z-Wave who created the team as a way to atone for their earlier actions. The unreformed ones were slightly vampiric, needing human blood to survive.
The Teotl were somewhat savage beings whom the Shukkegers had to prevent from devouring people; the Teotl didn't need it, but believed they had earned it.
The Red and Green Rangers were strangers who started a rivalry because Red was worried about losing his position and Green wanted to prove himself.
ShukkeRed was the younger brother of ShukkeGreen, and they became rivals because Red wanted to prove himself and Green would take charge automatically.
The Acuallizord was a massive Zord-like robot built by the Tzitzimime as a match for the Megazord.
The Dai Oōtoko Kami was a massive mecha controlled by the spirits of defeated Tzitzimime.