Dear Doctor,
The following Operators will appear at a higher rate between May 14, 2021, 04:00 (UTC-7) – May 28, 2021, 03:59 (UTC-7).
★★★★★★: Angelina / Hellagur
★★★★★: Projekt Red / Manticore / Beeswax
#Arknights #Yostar

https://twitter.com/ArknightsEN/status/1393038358075609088