 This article is about an alternate reality in Kamen Rider Zi-O.
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The Eastern Calendar (東暦, Toreki) is the name of the timeline created by Rider Jacker mission of taking hold of the Kamen Riders one after another, stealing their power. [Kamen Rider Super Live 2019]
Inhabitants[]
| Kamen Rider Build | Sento Kiryu |
| Kamen Rider Ex-Aid | Emu Hojo |
| Kamen Rider Brave | Kamen Rider Brave |
| Kamen Rider Snipe | Kamen Rider Snipe |
| Kamen Rider Cross-Z | Kamen Rider Cross-Z |
| Kamen Rider Drive | Kamen Rider Drive |
| Kamen Rider Wizard | Kamen Rider Wizard |
| Kamen Rider Kabuto | Kamen Rider Kabuto |
| Kamen Rider Ryuki | Kamen Rider Ryuki |
| Kamen Rider Kuuga | Kamen Rider Kuuga |
| Kamen Rider Black RX | Kamen Rider Black RX |
| Kamen Rider 1 | Takeshi Hongo |