This episode finally introduces us to the rest of Kei Takishima's family - A father whose feminine traits are way, way over the top to the point of being hugely annoying, and the almost inevitable rebellious younger brother who feels that he can never live up to the standards set by Kei, and so between that and Kei's perceived coldness to him he refuses to do any kind of school work and so own. Enter Hikari as a tutor, and (I'm sure this isn't too much of a spoiler) an eventual reconciliation between brothers.

Special A also seems to suffer a little from being a jack of all trades but master of none - It's attempts at comedy often don't work, in this episode in particular, whereas the more poignant moments are often laid on a little too thick.
In closing then, I suppose I'm saying that this series should probably be avoided, unless you can grow to really, really like the two lead characters. I haven't reached that level of interest in them just yet, but I imagine I'll persevere with this series a little further for now, if only on the basis of the more entertaining third episode.