
I can definitely see where you're coming from, and I agree it was a sad hot mess. Its a matter of preference, right? (=・ω・=) I liked it because at that time I guess I was in the mood for something violent..pure sex kinda thing. Its probably after rereading Katekyo and super lovers for the nth time that I needed a breather from too much fluff lol. Yep, the plot's not golden, but it fulfilled what I needed. Wow that sounded bad, that i came here not for the plot. But yeah, sometimes its the other elements that get me. This time its the art and sex. Sorry for replyin im bored

Ooh, Im not coherent, but lemme try. This is gonna be long and confusing. Assuming that the translation is accurate, here are some facts(?) I got.
~Hachisu —the little guy; his twin's Keito; orphaned; witnessed his parents' death when he was 7; he looks like his pops Ren, acc to Shion
~Ren— the real papa of the twins; cousin and lover of Shion
~Kira — wife of shion but hates the fucker because he doesnt love her; seduced Ren, which resulted to the twins (lol wut)
~Uncle Shion — he killed Ren and Kira in revenge; the source of all evil
~Keito— the other twin; loves Hachi; hates Shion but gets fucked by him for Hachi's sake (not sure about this one)
~Miroku —the most normal out of the bunch (I guess); loves Hachi; looks like Shion acc to Hachisu; he also wanna kill Shion
So, yeah. Shion is fucked up. He had a wife(Kira) whom he never loved, and a lover(Ren) who also happened to be his cousin. In revenge, Kira seduced Ren, then had conceived the twins. Shion the fucker thought he had the right to feel victimized after all he'd done to them (to Kira, especially), and killed them in revenge. He took in the twins. The brats all knew that Shion killed their parents, but Hachi still loves him. I dont even know why, it wasnt expounded that well. He obviously loves sex, as seen in the intro of the story. Maybe one reason's that he likes having sex with Shion (I swear he did say that!), despite being aware that the man's just fucking them for his selfish death-transcending revenge for what their parents had done to him. That's basically the gist of it. Im sure I made lots of errors here, so read it again if you want.
P.s. There's a confusing part here tho. Hachi actually says in the narration that he's not blood-related to Shion, eventhough he apparently is, being the son of Shion's cousin. BUT maybe the author just meant theyre simply not biologically like, pops and brats. Do ignore this part hoho. And miroku remains a mystery to me. I think he's shion's brat, but he calls him uncle. He cant be ren's because..no. Lol.
Because of the comments, I only read chapter 2! ლ(´ڡ`ლ)
Idk guys.. I mean, this is a watanabe asia classic. That kind of "fucked up-ness with lots of incest and dayum 3/4-some sex" is like, her style. Like, I give sensei her own category, just like how ogawa chise, nakamura asumiko, sakyou aya and all other great authors have theirs. Whatever your mood is, youll find your beloved author to satisfy your cravings. And her works are perfect for me whenever I feel like reading weird/nonsense hot sexful yaoi. Idk y dis got long lol.. In short, I enjoyed it just as much as some of you guys did. :)