Aoki Honoo

Light and Ryuuichi share a lot in common: they're both sociopaths, they're both willing to use and discard women, they both view their families as expendable, and they're both more than willing to do anything to achieve their goals. They should be best friends, really. Blue Flames is a lot more appealing to those lacking vaginas - that has to be said. Its story is about a guy sleeping with various woman, getting what he wants, and then moving on to his next target - not giving a damn about their feelings. It's captivating because so rarely does something show the true selfishness of humans, but it goes without saying that the ladies won't be best pleased seeing representations of their own gender getting deceived over and over/won over by the power of Ryuuichi's penis... Of course, it also goes without saying that they wouldn't mind so much if the story was about a woman tricking foolish men instead. You probably won't like Ryuuichi very much, but - just like in the case of Light - you might still find yourself cheering him on order to see what nastiness he has up his sleeve next. read more 

The two top-tier anime for REAL MEN; those who follow the philosophy of 'treat 'em mean, keep 'em keen' a little too closely. Makoto of School Days infamy sees it as perfectly fine to sleep around/have orgies with as many girls at his school as humanly possible over a short period of time... immediately after confessing his love to a sweet, innocent, melon-breasted girl. Why should a guy give a toss about things like feelings and impregnation - after all, they're just stupid hoebags if hey get all clingy after sexy time, and it's their fault if they get preggers. Ryuuichi of Blue Flames infamy goes more down the Light Yagami path; not caring for the joys derived from sexy time. He's willing to enslave as many girls as it takes with his (presumably) massive penis in order to take over the world. Using and abusing hoebags is like breathing for manly man Ryuuichi. Put simply, he's like Light would be if he used vaginas instead of deadly pieces of paper to achieve his goals. Note: those with the brains of squirrels may want to avoid these two. I'd hate to unintentionally offend anyone by recommending these titles. read more 

Both of these series subverts what we might consider as anime. It throws our pre-established notion of what 2d animation or animated media should be out of the window, straight to the sun to be burnt to a crisp.  

Both of these '80s OVAs feature a cast of unlikable characters who are mentally unstable and do terrible things to each other. 

In both of these anime, one of the main characters is a sociopath who is great at manipulating others and does so to achieve his personal goals - a "monster" of a human. The difference is that in Aoki Honoo he's a protagonist while in Monster he's antagonist. 

Both OVAs are about douchebags that violently have sexual relationships with every girl around, with girls that are airheads, with only one soundtrack for the whole OST and that feel like those idiotic soft core porn B-movies. 

The main characters of these two anime have a similar outlook on life & other people. (They are both psychopaths)