Incest is Bad, Mmkay?

Brother from another mother? Sister from another mister? Please, in the manga world, that means those characters are half-siblings. There's just something about sharing the same womb (or the same man sack) that sends the reader's mind into a frenzy. And authors take advantage of that.

"On weekends we set up a skybox for our bedtime adventures."

I don't condone incest, but I sure read the hell out of it. The taboo nature of the relationship is hard to resist. I get a kick out of watching siblings simmer in their angst, wondering why fate has brought them together like this only to rip them apart with blood ties. You may say that I'm a sadist, but I'm not the only one. (I'm so sorry John Lennon for twisting your beautiful words.)

And after I've had enough of the angst burger, that's when the "you've got to be kidding me" kicks in.

Why is the brother such a psycho?