Dear Doctor,
The following Operators will appear at a higher rate between December 8, 2023, 04:00 (UTC-7) - December 22, 2023, 03:59 (UTC-7).
★★★★★★: Mizuki / Penance
★★★★★: Mr. Nothing / Corroserum / Hibiscus the Purifier
#Arknights #Yostar

https://twitter.com/ArknightsEN/status/1731938960044376504