The official website for the NGT48 idol group issued a statement on Monday that revealed that NGT48 theater manager Etsurō Imamura has resigned as manager of the idol group, and has been replaced by Maiko Hayakawa, with Tsuyoshi Okada as assistant manager.
NGT48 is a sister group of the AKB48 idol group based in Niigata prefecture, and it launched in 2015.
Yamaguchi and NGT48 member Ayaka Tano were absent from the group’s performance on Saturday.
The resignation comes after NGT48 group member Maho Yamaguchi made statements on social media last week regarding an incident in December where two men were arrested, but subsequently released, for allegedly assaulting her outside her own home.