Dear Doctor,
The following Operators appear at a higher rate between September 18, 2020, 04:00 (UTC-7) - October 2, 2020, 03:59 (UTC-7)
★★★★★★ Mostima / Hoshiguma
★★★★★ Blue Poison / Manticore / Sora
#Arknights#Yostar

https://twitter.com/ArknightsEN/status/1306608851911872514