Let's see episode 16 gave a proper introduction of the scantly-clad Kaya who's supposedly Nene's (you know that really hot maid that take cares of that hot MILF Yumiko) sister who is really attached to her. Hell, she freakin' teases her, licks her ear at one point, and probably wants to grope her if there weren't too many interruptions!
Episode 17 deals with Mako getting her first period! And since this is Touka Gettan we're talking about, it has to go forth the trippy route with something about her dragon inside of her awakening (wait, where have I seen this before

). It did, however; gave foreshadowing (well that's according of how the episodes are arranged) of the true roles Touka, Momoka, and Yumiko will have.
They ended the episode with Kaya making her first time appearance where her naked cat girl appearance caused lots of cars to crash!
