Katsuki is not acting, she's enjoying every moment of seeing where Sagara grew up. Sagara doesn't realise that Katsuki's not acting, he believes she's a brilliant actress. Haruka, is excited to see Katsuki again as well as the possibility of having an older sister to talk to, and help her with makeup, boys, and any thing else that girls can get in to.
Katsuki is not acting, she's enjoying every moment of seeing where Sagara grew up. Sagara doesn't realise that Katsuki's not acting, he believes she's a brilliant actress. Haruka, is excited to see Katsuki again as well as the possibility of having an older sister to talk to, and help her with makeup, boys, and any thing else that girls can get in to.