Dear Doctor,
The following Operators will appear at a higher rate between August 20, 2021, 04:00 (UTC-7) – September 3, 2021, 03:59 (UTC-7).
★★★★★★: Schwarz / Eyjafjalla
★★★★★: Franka / Liskarm / Aosta
#Arknights #Yostar

https://twitter.com/ArknightsEN/status/1428250380576587792