
Can somebody explain to me what does Shirotani means from “always wanted tk do this” refer to... sucking dick?? sex?? seems like bj to me... or not?
and also, if it's bj, then since when did he wanted to do it? has he always been attracted to guys more than girls ? is it snce from he was a child coz of his father?
if it's sex, then just same questions...

I mean since this is bl then maybe he has always been gay? but then, there's always some who only falls for the same sex because it's that person they fell for.
and this manga focused more in treating his disorder and fixing their personal issues and regrets.
it didn't show any other p.o.v where they actually expressed their preference aside from: for shiro, his dad, for kuro, his neighbor. and ever since the mishaps that happened in their firts... love? relationship? they have already been imprisoned from that matter.
so.. uhmm... not sure what I'm thinking about anymore

Ranzo and Ikuro are childs that is made a victim because of fhe greediness of the adult around them. From the very beginning they were deprived of a normal family that there can be.
Ikuro is made to hate Ranzo for being a neglected child by his unstable mother and immoral father.
Ranzo was made into a sex slave by his own father (just how disgusting is that) and was hated by his step-mother for shit reasons that can not even be associated to him. It is the father's fault for looking his ex-wife in his son and causing his nee wife to be unstable and being jealous beyond rationality towards Ranzo. Like fudge, instead of being a crazy woman, help the child instead to be freed from all those madness! but then the nature of the family they belong to is also a root of the problem. They are from the rich and influential family where envy, betrayal, greed etc is as good as their future (well in this kind of setting as always).
And lastly, Norihiko may also be a victim of the vicious effect of that family. He may be made to be twisted with all his ambitions, envy, failure, regrets that is also to be rooted in the yeah family/house again.
Anyway, they have come to be all twisted because of maybe one reason... well who knows hahaha can it be the father wherr as of the moment seems like to be the root of all these? or was the father also a victim of something? too much love turned to obsession to his wife? stress and pressure from the business and keeping the house' influence? well i'll stop now here hahaha

No, it looks like everything was arranged by Norihiko. You didn't read the chapter where it talked about his life and motivations? He likes breaking people down, of course. But the father and mother are to blame for making OTHER people suffer. Norihiko is NOT responsible for that. Thanks.
To think that min gyum's own conscience will tell him what I think all through out. and to think that this is the first time i've read the update after dropping it for like 3-4 times??? lolololol. in the end, i couldn't miss the end.
i'm just glad the author finally decided that anymore from mingyum is really enough and it's time to realize the things he does and it's heavy and painful consequences. but damn, it's really scary when your own doings haunts you isn't it.