Episode 19...OH SHIT, a plot development! And they did it in a style of a theater production which is pretty crafty. Let's just say this episode gives a mich greater understanding of Yumiko's family which I have to say it's FAR MORE F**CKED than I anticipated!
So here's what happened of which someone in another forums summerized:
[spoiler]1) Kiyoharu meets his sister, Yuriko.
2) They fall in love, and have a child, Yumiko.
3) Kiyoharu is disowned, and Kiyotsugu becomes the Kamiazuma heir. At some point later, Yuriko dies.
4) Years later, Yumiko visits Kiyoharu.
5) Kiyoharu attacks Kiyotsugu, plunges the mask fragment into his eye. Maid (Nene's sister Anna?) shoots Kiyoharu and Yumiko.
6) Kiyoharu dies. Juna possesses Yumiko. Kiyotsugu begins to think he's Kiyoharu, and that Yumiko is Yuriko. He still makes his advances toward her.
7) The two live like that under Nene's care until the present, where enter Momoka, Touka, and the rest.
So in conclusion....HOT SHOTA/LOLI INCEST ACTION ===> HOT TEENAGE INCEST ACTION ===> hot uncle/niece action?!!

[/spoiler]
Next episode preview said, "Peaches are delicious", and they showed a pic of a girl's ass.
