Personally, I think the sister is kind of a representation of us as the readers. We were "spying" on Uito and Sei and we were also rooting for them, too. That's how I saw it, anyway.
Was it a little weird? Yup. But I kinda see it like that too.
Personally, I think the sister is kind of a representation of us as the readers. We were "spying" on Uito and Sei and we were also rooting for them, too. That's how I saw it, anyway.