Really? I think she's one of the weeker characters. Her entire thing is staring off into space trying to be deep (teenage angst).Finally caught up on this as i quickly realised its a show that demands all your attention. The acting and direction is next level, but Anna Sawai as Mariko is the highlight of every episode for me, she was in her bag throughout ep9.
She's a great actor, but her character feels one dimensional in this.