Tl'd
(Japanon comment) To think that this story depicts Ruka masturbating while fantasizing about Kazuya, not Kazuya...

(Spoiler) "I guess I'm in love with Mizuhara," Kazuya says, unable to say anything. Instead of asking for a response, she compliments him by saying that his hair looks good on him and leaves. Kazuya, confused and unable to understand her true intentions, can't get it out of his head even after returning home, and even begins fantasizing about sex in the car with Asami. Then, out of nowhere, Ruka calls. Since the Kinoshita family had priority and couldn't make it on Kazuya's birthday, Ruka had arranged to celebrate another day. When Kazuya asks where they're going, Ruka suggests a date at his house. Since he keeps refusing to invite her to his new house because he needs to clean up, Ruka says she wants to do it at Kazuya's new house, and she decides to go tomorrow afternoon. As Ruka hangs up the phone, saying she loves him, Kazuya mutters that she's still as straightforward as ever. He plans to spend time with Ruka peacefully until July 11th, but...

After finishing the phone call, Ruka puts her hand in her panties, thinks of Kazuya's face, blushes, and masturbates, muttering that she wants to have sex. Next time, I'll show you where to look.

Maaan, this shit is getting dangerous. Ruka did become FemZuya 2.0.