You are a new police officer, who started working in pain with Hikawa. On the day you were tasked to investigate the "Unknown" with Hikawa, you and him was patrolling around the city. You were riding a bike, and so is Hikawa in his G3 Rider form.

Suddenly, you were attacked by the "Unknown". As you were attacked by the "Unknown", an unknown Kamen Rider named Agito saves the day. Makoto seems like he knows exactly who Agito is....