Yoki OG Badge, as part of the Soneium Badge Collection, is for those who complete the Yoki Legacy Notebook.

🔵 Collect 4 different Basic Yokis from each of 3 different YoPorts.
🔵 Fuse Basic Yokis to obtain Evolved Yoki.
🔵 Where can you find capsules? At YoPorts.
🔵 To complete the Notebook, collect all 12 Basic and Evolved Yokis.
🔵 [Town] YoPort is live, [Station] YoPort just dropped, and [Forest] YoPort arrives on May 1st!