Yeah, uuuuuh that's a gross violation of senpai's right to privacy. Am I supposed to feel bad for her, that she's having trouble confessing?
And why is it so bad she turns invisible? Surely people wouldn't be that scared of her. If anything it should make it easier to make friends when she has such a unique power, something to show off. But alas even basic thoughts like this mist be purged for the fragile premise to work.
Whatever, 4/10.