Kakyuusei: Hajimemashite Tina!

In the distant future, a mysterious floating object appears suddenly in the center of the city. The top secret mission unit "Alta Mira Agency" or AA is comissioned by the Defense Agency to deal with this mysterious invader. In charge of the robot training is Hunagai Otsuya. He must choose one of the girls to recieve special training which she will recieve in secret. They must use the "Battle Soles" to push back the enemy even at the cost of their lives.

A short in which a student named Ai meets an alien with a time machine. Ai also appears in the short "Kobe to Watashi".

The story is set on the fictional Hexagon Island. The twin female ninjas Suss and Tina, who have protected the island for generations, and the AI ​​robot Bull, use their wits and words to fight against the SDG monsters that appear one after another. The story depicts their struggle to save the Earth, borrowing wisdom from all over the world.

Haruka Minazuki and Aoi Kannazuki are freshman high school students and best friends. During the day they help with school activities but at night they thwart enemies like Black Auction and other villains as Red Angel and Blue Angel, the Twin Angel team.