Well…Kazuya doesn’t light Chizuru’s sparkler. In fact, even when he knows she’s crying, she laughs it off as smoke in her eyes, and the fireworks continue with her making innocuous small talk while Kazuya gets lost in his head.
I’ll give him this, though: before she can slip away with a thank you and good night, he does manage to do one thing: Tell her what his ideal girlfriend is. He goes on to perfectly describe Chizuru, including the fact that she can sometimes let her mask slip and cry.
And cry she does. Given everything Kazuya tells her, she recalls another memory with her grandparents, and the waterworks start gushing out all at once. Kazuya isn’t sure what exactly he said or why he said it, but it ended up being a very effective cathartic moment.
At the end of the date Kazuya hoped would cheer her up, instead he made her cry, but it felt like a good cry, a necessary one. And that she feels she’s not only able to cry in front of Kazuya (despite the fact she’s technically still “on the job” at that moment) but cry in his arms, says a lot about how far they’ve come, even if his description of her doesn’t count as a true confession.
That said, their date ends with her shrugging off the tears and returning to her bubbly Rental GF self as they part ways for the night (which in hindsight is odd since…they’re neighbors headed to the same place). Kazuya doesn’t his usual overthinking thing—even wondering if she was acting—when Mini teleports into his place to hear his report. She tells him he definitely made progress, but can’t stay still: the next step is going on a real date, with no money exchanging hands.
Of course, Kazuya puts his hands up and reverts to his whole “I’m just a client” spiel, which has at this point become absurdly tiresome. He and Chizuru also share an awkward moment on the balcony where she settles on what to wear for the screening in a week’s time. When we finally get some time in her head, she’s talking to her grandparents at her shrine to them. She knows they now know the truth, but also that Kazuya’s a good kid, and that she feels better after crying to him.
So yeah, there are clearly still a few more steps that need to happen before these two can consider dating for real, but groundwork that didn’t exist at the start of the season has most definitely been laid. Rent-a-Girlfriend is a marathon, not a sprint, and isn’t for the weak-hearted or impatient….or, I suppose, those intelligent enough to steer clear from this wheel-spinning fiasco!
Because at the end of the day, and the episode, and the season, Kazuya and Chizuru still can’t really imagine each other as boyfriend and girlfriend even if they have developed some feelings for one another. That Kazuya was able to get a movie produced with Chizuru starring in it should not be discounted, but in addition to their own remaining hang-ups, Ruka still exists and thinks she has a chance with Kazuya, and Mami is now hanging out with his granny, which can’t be good.
All this sets up a fourth season of this, presumably with a lot more Mami, and perhaps with Sumi and Mini in diminished roles (though not sure how much more you diminish Sumi!) Mami may be the most loathsome member of the cast (other than Kazuya himself of course), at least she’s voiced by a very game Yuuki Aoi. Right now I’m not that eager to dive into the fresh mess her last-minute appearance portends, but the fact is I won’t have to…not until next summer!