I have read through volume 7 of the boys love manga,
Loveless, by Yun Kouga, and will offer a review based on what I've read. On my list of top BL stories, it's come in at number 4. In order:
Mirage of Blaze,
Ai no Kusabi,
Winter Cicada, and this flawed but surprisingly good story.
Set in contemporary (but slightly fantasy) Japan,
Loveless tells of an abused 12-year-old boy, Ritsuka, grieving for the death of his beloved older brother, Seimei. One day meets a college student, Soubi, who informs him that he is part of a society of battle games (for want of a better expression). These battles are held in pairs consisting of a "sacrifice," who feels the pain of the opponent's attack, and a "fighter," who launches attacks at the opponents. Ritsuka discovers that Seimei was also a sacrifice, and Ritsuka has inherited Seimei's fighter, Soubi. This is irregular to the point of taboo, however, since fighters are supposed to die with their sacrifices and never pair a second time. From there, the plot thickens...
( Spoilers Follow )