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So apparently this is NOT the final episode, despite what has been written before.
I'm considering working on a full translation for this, but in the meantime, here's a synopsis.
Itsukaichi takes Kyoko to a secluded hot spring, he even pays for an expensive room that has its own private spring. He brought the subject up to her two days ago and said that she can make any excuse she wants to Godai, as long as he gives permission. They'll be gone three days and two nights.
She tells Godai she got a call from an old high school girlfriend, who asked if Kyoko could join her on a trip. Godai happily says yes, even though Kyoko wished he would say no.
She's impressed with the hotel, Itsukaichi explains that Kyoko deserves someplace classy. He has only one condition, that while they're here she calls him by his first name (Hiroyuki) and that they pretend to be young lovers on a trip. This seems a little too reasonable for Kyoko, who is suspicious.
They go to the bath right away. Hiroyuki calls Kyoko beautiful, and since there are only five days left in the contract he wanted to do something to remember. They start to have sex but Kyoko is concerned she'll be too loud, so he makes her suck him off instead. He's impressed with her skill. When he was done, he suggested they go for a walk. Kyoko, surprised, was expecting more, and starting to feel aroused.
As they walk in the garden Kyoko wonders why he's being so nice to her. When he pulls out a camera she's scared he might take erotic pictures of her right in public, but instead he has her talk to two women walking in front of them, he would take pictures for Kyoko to use as an alibi just in case.
After dinner, he starts to make love to her, but much more gently than he ever has before. She thinks what would have happened if he had been this nice to her from the start, then chastises herself for thinking that away. The lovemaking is excellent, Hiroyuki is using a special "portio" technique that he had used with her niece Ikuko and Kyoko cums several times.
As they continue to make love over the next three days, Kyoko cums many times more and loses control of herself, becoming addicted to the pleasure and using lewd language. He feels like he's succeeded in making her totally his by now, with only two days remaining on the contract.
It kinda sucks it's not over yet, but this was really good I don't really feel like we lost anything. I'm really not sure how it's going to end. I lean towards her becoming Itsukaichi, but she has her daughter and even though she really hasn't played a part in the story at all yet there is a nagging thought that will stop her from completly becoming his. Also if Itsukaichi secretly sent Godai tickets to come here as well, so they get caught, I could see that as well. Can't wait for the next part.
So to recap. None of these events are Canon right? Then it doesn't really matter to me how it ends but, going by ryuichi track record he has a habit of making them not completely fall to the guy. Or at the very least they get their comeuppance.