Junjou Renka

1.) Caged Hawk: A haughty ojou-sama is sold into prostitution when her family fall on hard times, and her former servants know where she works.

2-4.) Rindou: A manor deep in the mountain. A girl trained to bond with men in power, believing a legend that what she does keep the nation prospering. Rindou performs her duty unquestionably, until the day she meets a young apprentice who tells her about the outside world.
(The tags mostly apply to this story)

5.) Dogeza no Kadou

6-7.) Border Between Nobility and Taboo: A sadistic snob cant stand a poor girl who ignores him at school, so he proceeds to teach her a lesson.

8.) Noblesse ☆ Oblige: Girl from an upstart family is anxious to learn from her prim and proper classmate about duties of high class ladies. [Full censorship]