|This article is about a/an organization in Kamen Rider Zi-O.|
- "We are Quartzer, the Wardens of History!"
- ―SOUGO announcing his organization in front of Sougo
The Quartzer (クォーツァー Kwōtsā) are a mysterious time-traveling group who appear in Kamen Rider Zi-O: Over Quartzer.
Quartzer is a time-travelling group lead by the Sougo Tokiwa from the actual reality. While the leader wears a red-coloured garb, the others wear a black-coloured version along with a robe.
They began their direct interference in Zi-O's World by attempting to erase Kamen Rider Drive's history and 'dethroning' Zi-O, leading him to gain Ohma Form.
- SOUGO Tokiwa/Kamen Rider Barlckxs
Other unnamed Generals
- Multiple Kasshine
- The unnamed members of Quartzer are portrayed by the members of DA PUMP.
- The Ridewatches of all the 4 Riders of Quartzer are dated 0000, likely because they all hail from a different timeline.