Heisei Kamen Rider 20 Series: Supplementary Plan
Series
Heisei Kamen Rider 20 Series: Supplementary Plan (2018)
平成仮面ライダー20作補完計画
Heisei Kamen Rider 20 Series: Supplementary Plan is a four-episode "Telasa Original" web miniseries serving as supplementary material to Kamen Rider Zi-O.