Kamen Rider Zi-O: Supplementary Plan (Season 1)

Episode 1.5: Mystery of Naming (Episode 1)

Air date: 2018-09-02

Runtime: 5 min

Overview: 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 2.5: Rules of the World (Episode 2)

Air date: 2018-09-09

Runtime: 5 min

Overview: What are the rules of the world where our characters living? There are answers...

Episode 3.5: Regal Spoilers (Episode 3)

Air date: 2018-09-16

Runtime: 5 min

Overview: 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.

Episode 4.5: A Confession of A Legend (Episode 4)

Air date: 2018-09-23

Runtime: 5 min

Episode 5.5: Sougo Tokiwa and the Mysterious Phone (Episode 5)

Air date: 2018-09-30

Runtime: 5 min

Episode 6.5: The Secret of Fourze 555 (Episode 6)

Air date: 2018-10-07

Runtime: 5 min

Episode 7.5: Who is The Worst Black? (Episode 7)

Air date: 2018-10-14

Runtime: 5 min

Episode 8.5: The Terrifying Time Paradox! (Episode 8)

Air date: 2018-10-21

Runtime: 5 min

Episode 9.5: The King, God, and the Adult (Episode 9)

Air date: 2018-10-28

Runtime: 5 min

Episode 10.5: Mouri vs. Shimoyama (Episode 10)

Air date: 2018-11-11

Runtime: 5 min

Episode 11.5: Mysteries of 95DO! (Episode 11)

Air date: 2018-11-18

Runtime: 5 min

Episode 12.5: Interview with Future People (Episode 12)

Air date: 2018-11-25

Runtime: 5 min

Episode 13.5: Ghostly Teacher (Episode 13)

Air date: 2018-12-01

Runtime: 5 min

Episode 14.5: Pink Devil (Episode 14)

Air date: 2018-12-08

Runtime: 5 min

Episode 15.5: Supplementary Plan Forever (Part I) (Episode 15)

Air date: 2018-12-16

Runtime: 5 min

Episode 16.5: Supplementary Plan Forever (Part II) (Episode 16)

Air date: 2018-12-23

Runtime: 5 min