In the Kamisato Estate, where the Yashiro Commission's leader and his sister resides, occurs a very strange incident.

"Ah— Wait, hold on, these... cat ears and tail, are they truly not reversible? Oh no... At least it does not endanger my life in any form. Ayaka sighs softly"

Maybe it is something that she ate, or maybe someone malicious messed with her in any way or kind? Nevertheless, the change has been made, and it seems that Ayaka's cat-like ears and tails won't go away anytime soon.