Bad Blood (Yaoi) manga

Story 1: Lover's Name
From Ultimate Manga Guide:
One night, Ei Ariga runs into a very obnoxious playboy stranger. Then he finds out that the guy looks exactly like but otherwise is totally opposite to the timid and very polite Ryouichirou-san who lives

One day a boy, who looks like a kitten to some stands, calls at Manato's door and tells him that from today on he'll be his roommate. It isn't long after that Manato "adopts" this boy as his "pet", but this kitty has its own aim. Anyway, while the "kitten

Wada Tatsuki seems to be an ordinary bus driver, living a simple and peaceful life. However there is a heavy burden he holds in his heart, a terrible thing that he has done in the past. What if one day the man he hurt appears and wants to take revenge?

Even though J no Subete is 3 volumes long, each volume is a dynamic story in itself covering a particular stage of J's life. His life is a dark story and it's a very psychological manga.

Book 1 is about all of J's trials and tribulations throughout childhood, during highschool as he tries to find his place in the world and when he meets the somber Honor student Paul...

Timeline (from Oriolidae & Sparviero):

01 Barairo no Hoo no Koro v01 ch01-05
02 J no Subete v01 ch01-05
03 2 Shuukan no Adventure v01 ch05-06
04 J no Subete v02-03
05 Barairo no Hoo no Koro v01 Extra

Story about Sarasa who is in conflicts with his very sadistic nature and his relationship with Kazunari.
vol. #1 Kyouhansha ni Kuchizuke wo
vol. #2 Yoru wo Hashiru Emono (Game Runs in the Night)
vol. #3 Mezametara Soba ni Ite (When I Wake Up, I Wish You are With Me)
Summary from Evil Empire: "Sarasa is the head of the student council and the step-son of the principal. He is targeted for sadistic sex-play by one of his classmates. Kazunari, the vice-president of the student council, tries to protect Sarasa, but Sarasa tells him not to get involved. Kazunari doesn't listen, but the more he gets involved, the less he is certain - who is really the sadist, and who is the victim? Will Kazunari's love for Sarasa survive? Will Kazunari survive Sarasa's "love"?
Warning Rating: NC-17- hard yaoi, S&M, bondage, fisting, incest, rape, you name it."

Shuji Yashiro went to take pictures on the school rooftop rumored to be haunted by the ghosts of twins. That was where he met his classmate, Roku Ichinose, whom he always considered to be someone belonging to a completely different social world. He couldn’t take his eyes off Roku’s face, and took his picture on impulse. The following day, while he was organizing old photos in the clubroom, Shuji found a shocking photograph. 

Quiet, sweet story of an emotionally shuttered university sempai and his conversationally clumsy junior. Sharing the same last name and a love for classical music brings them together a little. But will this be enough to bridge the gap between the sempai'

Haruya, a magazine article writer, is constantly frustrating his editors with his lack of inspiration. His calm, quite life is spent in a house away from the city. However, upon meeting a shy boy undressing on the beach, their lives become linked. An unus

A collection of oneshots falling on the darker, more depressing side of yaoi/BL. WARNING: Some stories contain incest.
Includes:
1) 0.02
2)Biter
3)Trillium - WARNING: contains incest
Ryouji is a college professor who is having an affair with Yuzuru,

Sakaguchi is in a sexual relationship with his step father that is abusive, but he enjoys the pain because it helps mask darker memories from his past. He then meets another student who also has a troubled background who may be the person to help him stop