First mom and now your neck as well? (Pixiv Fanbox)

In a completely unexpected way, Carrie managed to convince someone to take on the role of the sister, she wasn't risking getting caught by Holly, I'm more concern about how easy it was to convince Kat on doing this but in the end both Kat and Carrie will be closer to John, in a way, the only thing that remains is what to do with the former mother and sister....