Nintendo of America on Twitter: "Meet a certain condition in #Splatoon2 after the V.3.0 update launches, and Callie of the Squid Sisters will appear in Tentakeel Outpost in Octo Canyon. She'll help
Callie - Inkipedia, the Splatoon wiki
Squid Sisters Stories: Chapter 7 | News | Nintendo
Le mode solo dans Splatoon 2 - SplatActu - Splatoon