This is a special work by Psyche, filled with skill, style and conviction. I'm honestly surprised.
Inu mo Kuwanai (Despicable) is a real departure from the rest of Psyche's scanlated works that I've read. As a result, it's definitely worth a close read.
Stylistically, a lot more attention to detail has been paid, and the characters don't come off as puppets in a 'plot-what-plot' porno--not that Psyche does even that badly. For example, Chocolate, Strawberry, and Vanilla had wonderful, multidimensional personalities, after all.
In comparison, though, Okuzono, Yamashiro, and Utsugi, while not being on-the-nose about it, really touch the heart, and in different ways..."The chased man, the man giving chase, and the man chasing the man giving chase."
I'll also add that the time and culture in which they grow up heavily influence their behaviour, and it's fascinating.
But for all that, their motivations and desires can apply to just about anyone: a desire for affirmation, affection, care, recognition, and respect, tainted by dishonesty and narcissism, perhaps even outright abuse.
But the above all gets told simply and very subtly. So give it a try one evening, and read slowly.