Kamen Rider Zi-O: Supplementary Plan (2018)
A web-exclusive series released on Toei Tokusatsu Fan Club. It accompanies the airing of the main series' episode the day after it.
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Seasons & Episode
1
Episode 1 - Episode 1.5: Mystery of Naming
September. 02,2018
What is the mystery behind the names of characters that appeared in the first episode of Kamen Rider Zi-O? These are some answers...
Episode 2 - Episode 2.5: Rules of the World
September. 09,2018
What are the rules of the world where our characters living? There are answers...
Episode 3 - Episode 3.5: Regal Spoilers
September. 16,2018
Tsukuyomi, Geiz, Sougo, and Emu receive scripts as they talk about "Why Emu was in the Game World", to which Emu replies that it counts as a spoiler.