Dear Doctor,
The following Operators will appear at a higher rate between December 10, 2021, 04:00 (UTC-7) – December 24, 2021, 03:59 (UTC-7).
★★★★★★: Ceobe / Surtr
★★★★★: Zima / Provence / Mr. Nothing
#Arknights #Yostar

https://twitter.com/ArknightsEN/status/1468837825843851265