Seigi wo Aisuru Mono Gekkou Kamen is a tV series anime that premiered in winter 1972, produced by Knack Productions.

About the production: the story comes from a other, there are 39 episodes of about 20 minutes and its current status is "finished".

Its main genres are action and adventure, with themes such as Superhero and Tokusatsu.

On AniList, Seigi wo Aisuru Mono Gekkou Kamen has an average score of 58%, an average score, and appears on 537 users' lists.

As the theme song denotes, no one knows who Gekko Kamen is. He is a lone figure dressed entirely in white, who mysteriously appears when danger is afoot. While he appears to be a regular human, he is exceptionally gifted in many areas including unarmed combat and gymnastics. He is an expert motorcycle rider and a superb marksman. (Source: AniDB)

Official synopsis from AniList.