ASTELLAS is a dictatorship. As long as you do not question/challenge the system and or your boss, and follow everything they tell you, then you are fine. Remember, this is a Japanese company and therefore a Japanese culture.
Go watch WWII documentaries about Japanese soldiers and the way they followed their superiors/masters until their death and if they challenged them, they were shot on the spot. Well, you can expect a similar attitude and culture in Astellas.
Other clear and obvious difference is lack of seeing minorities in Sr. Leadership. And by minority I mean seeing qualified, hard working African Americans, Latinos.
What Astellas has done, similar to some other Japanese companies is to satisfy their quota by hiring mostly unqualified females trying to satisfy EEOC.
So, if you are white, can follow orders, not question or challenge your boss and the system and can just follow and take orders well then this is a right place for you BUT if you can actually think and question then you are not welcome here!