Yuusha Shirei Dagwon

A massive space creature attacks a city, causing panic and chaos. Five high school students—En, Kai, Shin, Yoku, and Ryu—get trapped and take refuge in a patrol car, which suddenly emits a blue-white light and transports them into space. There, they meet a Bravian, a Space Police officer tasked with maintaining universal order. He reveals he was targeted by violent aliens in the Space Prison Sargasso and gives them a battle machine, "Dag Beagle," modeled after Earth technology. Empowered by the Bravian, the students transform into Dagwon and confront space threats. When a monster appears near En, he merges with the patrol car to become the Brave Robot Dag Fire and defeats it. The conflict between the Dagwon and the Sargasso aliens is only beginning.