Yes, she is the AV actress (the way that she fix her hair, the bruise on her arm and the "surprise face" on the hotel)
On this chapter:
Kotone, the girl, finds the porn DVDs with Fujimori Misato and then she remember the woman on the "love hotel". Then she figures out that Kenji's mother with make up she looks like Misato. After that she realizes or thinks that the reason that Kenji is dating with her it's the Oedipus complex because she's very like his mother. In the final page she asks to Kenji why he's dating with her.
Well .Maybe another Bitch house wife !? Still yet we don't know mom was the av actress in story ,But the a Camera lens cut in Chapter7 Page 12 was a big prof to connect relation between mom and av actress from my opinion.
PS: Great Story BTW. I can't wait to know the truth of her mom was av actress or not.
Although I have not seen chapter 09 (no matter how, I could not access it on the pizazz website), seems like chapter 10 is the last, since it says owari/oshimai at the bottom of the last page, and until now, there is no incest at all. It ends with the guy sleeping with his girlfriend who looks like his mother (after having sex) and the mother looking for them, commenting that they're not in the room/place they should be and (if my anemic japanese is correct) with the mom saying "I feel happy for him, although I'm a bit jealous"
Like I said, I have not seen chapter 9, so I can't be sure if the guy had at least one chance to be with his mom or if the mom confessed she is a porn star (if she is, in the first place), but the way the manga has developed, I'd say there is no incest at all. Just a guy with a crush for his (pornstar?) mom, and he is lucky enough to find a girl who looks like her.
Now that I think about it, no incest will make sense, since the manga title could be translated into something like (if my anemic japanese is correct once more) "In place of/Instead of my Mother" I'd really appreciate if someone with higher japanese knowledge could confirm this though.
Well, it looks like we will never know whether the mother is the AV actress or not. I've read chap 9 & 10 and they only concluded the relationship between Kenji and his gf (they had sex and happy end, I must say his gf look more like Misato than his mom :P). The mystery of Misato (the AV actress)'s identity is only to attract reader and help to setup the background for Kenji's relationship.
Anyway, can someone remove tag incest because there is no incest in this story