Hikaru is at first sight a student like others but actually it is a super hero defending the Earth of the demons. He has a powerful super bike and a combat suit. Inspired by the classic Space Sheriff (Uchuu Keiji) trilogy of the Metal Heroes Tokusatsu franchise, namely Space Sheriff's Gavan and Sharivan.

OVA which was released as a tie-in to the Kandagawa Jet Girls video game for PlayStation 4.

The year is 1580. Using an army of soldiers equipped with sophisticated weaponry, Nobunaga Oda is on the verge of ruling Japan with an iron fist. One of his enforcers is Ginnai Doma - a fallen samurai reborn into an indestructible killing machine. As Ginnai continues his killing spree on ninjas and those who oppose Nobunaga's rule, Shishimaru of the Iga Ninja - going against the Koga Ninja's plans - pursues a one-man vendetta to avenge the deaths of his comrades and kill the immortal warrior.

Wasted from the night before, Kaede wakes up the next morning to find herself at home with a dinosaur she had brought along with her. The two start living together as an odd pair consisting of a typical gal girl and a mute dinosaur going about daily lives. Although not the most experienced paleontologist, Kaede begins to learn more about her new prehistoric roommate through a series of comedic gags and adventures. [Written by MAL Rewrite]