The morning after we had sex like lovers, taking advantage of our parents' absence... We woke up with a dizzying feeling of discomfort in our bodies and minds. And then we were... We were back in our own original bodies. The joy of being back to normal was short-lived... Even though we were panic-stricken and confused in our minds, the guilt of having entered into the never-to-be-forgotten relationship of sisterly incest overtook us. After that, we couldn't even look at each other, let alone talk... Well, if I remember correctly, we weren't really the most talkative sister and brother even before this happened. Ai: Makoto... go back to your bed... Makoto: Hmm, I know. From that point of view, everything is back to normal... (sigh) To be continued!