I think everyone here is talking about her debut season as a senior, not about her achievements in the junior circuit.
Not me. I was talking about Rika Kihira and her weak mentality, compared to her Marin delivered when it counted. She is junior world champion and silver medalist (well, for me 2 time JW champion :sarcasm while Rika is... well...
So don't say Marin is mentally weak, when there are other japanese skaters worse than her.