There were several things that made my blood boil, namely the frivolous attitude that was taken towards the issue of gang-rape and abuse in several ways.
The main character unfailingly persists in following the seme around like a love-starved puppy, which is supposedly a message on 'love conquers all', but how on EARTH are we supposed to take it seriously when the main character a) pointedly ignores the person who's doted on him for several years and probably cares more about his heart condition than HE HIMSELF DOES b) gets gang-raped and discarded like trash and he still stalks the seme back to his home and stays there without moving for three days because he LOVES HIM anyway (a point he never fails to bring up as well as reminding us again he hasn't a single CLUE what was going on, let alone think about salvaging his PRIDE as he crawls back) c) the seme gets off totally free without any remorse AT ALL d) all above happened and more, and yet, everything was resolved with sex and an omake making light of the whole situation.
I forced myself to get to the end because I was hoping for the manga to deliver at least some shred of moral judgment or at least a commentary on it, but as mentioned, they had sex and all is well, the end. This is one of the few mangas where I'm unfortunately not able to treat it as a light-hearted, fantasy read (suspension of disbelief) because, to put it bluntly, the manga is stupid.
If you hate zero-developed characters and crying, spineless ukes who does the usual tactics of a moronic lovestruck high school bimbo, then avoid at all costs.
(+2 for the art.)
Edit: Spelling.