^As far as I can tell, Komaru x Touko is more popular than anything het to ever come of Daganronpa
That said, I haven't played Ultra Despair Girls and don't know the details of it, so idk what makes them popular
Ema's sister and Aura from Dual Destinies are both pretty much confirmed to be lesbians.
Adrian from the second and third games is also heavily implied.
Yes it's Baki, no I don't know the specific characters
I haven't watched the whole thing (should get back to it), but from what I've seen one takes a bite of the other's face off.
^Nah I think MachuNya had good enough chemistry. The problem is the writers' obsession with Shuji (despite doing fuckall with him) and with making references to famous scenes.