/jp/ - Otaku Culture

>>44008940
Nope, Youmiya said in MyGO no Shiori that the auditions for Tomori took place at around the start of 2021.
Rin and Hinapiyo only got revealed in the same Hibiki Style as Chiharu (11/2021), and both of them started working roles sometime in the middle of 2021.
Kohinata Mika also got started in 2021 for S-inc.
That leaves Coco. As far as I know, the only mention of when she joined MyGo apart from her saying that she's been drumming with Mika for years is from an interview she did (picrel from https://twitter.com/ForrevaEiEn/status/1647540404416577536).). It's probably just a coincidence, but MyGo's first live (07/03/2022) and seiyuu reveal (04/09/2023) just happened to line up with when Run Girls Run was announced to disband (07/25/2022) and when they actually disbanded (03/31/2023).
TL;DR: I think MyGo was more or less all cast in 2021.

By the way, the first episode of MyGO no Shiori got subbed if you missed it. https://www.youtube.com/watch?v=iYBAyWs_TWs