You did not just say Belief & Sex is better than Aunt Tits, hell noooooo.
Of course I did, though that doesn't take much. Just not being almost entirely about incest and sexual assault should do it, and it doesn't have any of either of those things.
I, at least, definitely do not consider those positives. The series as a whole basically has hentai manga "quality" writing, except technically it's not hentai by the thinnest of margins. That doesn't make it better.
did he bang the black haired girl yet
No, he's with the wrong girl now.
I am surprised that it actually happened though, though the series has referenced sex before of course -- neither Shou nor Yuki is a virgin (though the third and fourth girls might be). Seiji, of course, was until this chapter.