I'm probably alone in my hatred of this series, as other seem to enjoy it, but I found it to be so stupid that it was offensive. It tries to cram every yaoi cliche known to man into it's plot: blackmail, fake dates, childhood promises, love triangles, you name it. And the premise makes no sense: as an apology to his ex for cheating on him, the uke agrees to be the office boy for the ex's current boyfriend. Huh? Why?
While the plot is bad, the characters are worse: the main character is totally unlikeable. He's selfish and had no qualms about regularly cheating on his previous lover, nor about hooking up with said lover's current boyfriend (even while he's trying to atone for cheating on his ex!) But wait! The uke's actions are forgiveable because he has sekrit angst in his past. Sekrit angst that causes him to sit alone in dark rooms brooding about a time when he will not be alone! How can we not pity the poor little cheerful--but emo!--uke? But if the uke is a bastard, the seme is an even bigger one. He treats his boyfriend (the ex) like crap--insults him, hits him, and cheats on him--all the while being inexplicably in love/obsessed with the main character. Perhaps it's his coffee making skills that make him seme bait? Or perhaps the seme too has sekrit angst which makes him love the uke? Hmmm, which could it be? But hey, who cares about the fact that the seme is slime--after all, he's hot! He's a model! And if that seme character type doesn't float your boat, try this on: he's also the head of a yakuza group! He's a model AND a gangster! Instead of actually working at one of his jobs, the seme seems to spend a great deal of his time lounging around the office on desks, couches, etc. looking woeful and angsty in suits while his underlings (also in suits) look on and drool at his hot manliness. Hey, if you're hot (and emo!) the audience is expected to forgive you anything!
It's supposed to be a love comedy, but the only thing that's funny (can't be the jokes since most of the time they fall flat) is how painfully stupid and cliched it all is. It's easily one of the most moronic yaois I've ever read (and I've read a lot). Sure, the art is great, but if you feel like your intelligence level's been lowered after reading a manga, then so what if it's got bishonens in it?