Hello Aerith would like to adopt Mizuki and protect her from everything.

On a more serious note and we touched on it in her most recent log, Aerith is a teeny, tiny bit under the impression that she went and did Something Cetra and that might have been the thing to tip Mizuki away from her. (This is a reoccurring concern for her due to how her abilities have affected her friendships when she was younger.)

This can certainly develop into something. All things considered in Aerith's personal life, I think Mizuki is a breath of fresh air for her and she, regardless of the situation, has stock in Mizuki's well being.