Dear Doctor,
The following Operators will appear at a higher rate between December 29, 2021, 10:00 (UTC-7) – January 12, 2022, 03:59 (UTC-7).
★★★★★★: Pallas
★★★★★: Projekt Red / Specter
#Arknights #Yostar

https://twitter.com/ArknightsEN/status/1475723190286655488