Okay I must say the story was fairly okay. After many years of reading yaoi I've realised its too much to ask of authors to make equaled relationships. Usually its a hacked-up cliche niche that they've set up, and most yaoi readers actually enjoy it.
If you're expecting a story with both the uke and seme having equal standing, then this would be disappointing you greatly. The semes (in both relationships) are cold, demeaning, condescending and hateful.
The first couple is fairly likable. A seme that is cute and dominating but childish and persevering. He apologises and at least understands some of his faults (and attempts to make good). Although the uke is far to quick to forgive and gives in very easily, its still a sweet story because the seme's continued domineering 'love' somehow makes up for it. I guess the seme came out a bit too childish and child-like so you as the reader write him off (and he is cute mind you).
The second couple made me cringe and mainly the reason why I gave this manga such a low rating. Horrible seme. Utterly disgusting. I don't see why he had to act that way at any point in time. He came of as a selfish dick. He is a good friend to the other couple, but absolutely icky with the person he 'supposedly' loves. If the first story had some 'love' this one lacked love at every level. SPOILERS
Chapter 3 the dick seme is asked out -repeatedly by the friend. He goes off to rant how he is digusting ... Err one thing - anyone think its absolutely wrong with the fact that is the flashback Mu got raped? It was RAPE cause the kid was underage - and his supposed friend was like - oh he had sex, he's such a sex fiend! This spells psychological shit! So fine the guy has a taste for sex, so he is slutty - EVERYONE has sex sometime (in yaoi) and why is it so wrong to enjoy sex, men have sex all the time, especially in youth, nothing wrong with it, but he seems to blame him - and even say "I don't want your leftovers" how much more condescending do you need to get Bitch? So he plays around, everyone does. If you want him to be serious about you, do something about your half-backed attitude FIRST. So he asks him out - says he loves him, then he sticks it in so it bleeds (do you know how painful that would have been?) because he wants him to cry like a virgin? BITCH I want to cut you up right here D< ARGH! Disgusting!! He was so disgusting. Has a terrible attitude, a total dick, he doesn't 'love' his friend. In fact I got a feeling he was just venting his frustrations over the other guy. Meanwhile Mu was so endearing. He said he'd make up for it with love. He tried so hard, of course he was promiscious but that was probably due to being RAPED in childhood... Bleeeh this story serious sucked, the Mura guy I hated each time he appeared, nothing good came out of his mouth. He enjoyed teasing the other couple, and abusing his friend. Total asshole - and don't get me started on the extra where he is all like - I needed to test you so I kissed the other girl because you are so promiscious! Okay the end. I give up. So much ent up fumes !!!