It's September of 2019, and a group of high school students are more than ever excited to pursue their dreams. Sougo Tokiwa wants to become a desirable king, and Geiz (alternatively called as Keito) works tirelessly to become the true judo champion while trying to impress his crush, Alpina Tsukuyomi. However one day, when Geiz is killed in a mysterious accident, he is forced to take up the mantle of Kamen Rider Geiz, while a new transfer student leads him to nothing but one grand conspiracy.