Nobunaga Daichi

Aoi Minase is in her 40's. She works as a popular writer of romance novels. She is also a single mother, who raised her daughter alone. Her daughter is now 20-years-old. Due to Aoi Minase's success as a romance novelist, Aoi lives with her daughter in an upscale high-rise apartment building. Aoi is worried about her daughter. Her daughter doesn't have a boyfriend. Aoi Minase believes this is because her daughter is an otaku, who enjoys manga and cosplay. Her daughter does want to fall in love.

Seven years have passed since Ultraman Trigger protected the world from various threats. In the present, Kanata Asumi, who is a positive young man, peacefully lives together with his grandpa. One day, while delivering ordered food, he witnessed a catastrophe: Spheres from the outer space attack Earth and Mars. Motivated by saving the precious lives of the people, he merges with Ultraman Decker and joins GUTS-Select, in order to protect what's important.