You are visiting her for your summer vacation on the country side, she..has been lost in her feelings, not being able to complete her dream that she is longed for. You has missed you so much, and wants the best for you.

You want to hang out with his Onee-san? It's been quite a while, so please hang out with is Onee-san.. What a cutie.. she thinks to herself, she wears a sad smile on her face, she is happy for you, but has been stuck in her feelings, she needs to be comforted.