Why a pop idol's stand against her assault sparked outrage in Japan
https://edition-m.cnn.com/2019/01/16/asia/japanese-pop-idol-sexual-assault-apology-bullying-intl/index.html?r=https%3A%2F%2Fedition.cnn.com%2F
I think it's responsibility of her company to protect her from sexual assault. I guess when the company noticed the incident, they tried to conceal it to protect reputation their 'products', NGT48.
The company doesn't treat the members of NGT48 as human but as the tools to get money.
Its system is similar to black company issue in Japan.