First Blu-ray box set release from tokusatsu series "Kamen Rider" aired from April 1971 to February 1973. Based on an original work written by Shotaro Ishinomori. Includes four Blu-ray discs featuring episodes 1 through 26 and a bonus DVD featuring "Kamen Rider Memorial Vol.1" and trailer for "Go Go Kamen Rider" (subject to change). Also includes a booklet.