Shôji Saeki

After being brutally murdered along with her family, Makina Hoshimura turns into a Shikabane Hime, a living corpse contracted to the Kougon Cult, in order to exert revenge on the mysterious undead organization responsible for her death. She is assisted in this task by Keisei Tagami, her contracted priest and former friend. (myanimelist.net)

Izumi Sawatari and her younger sister, Mitsuki Sawatari, have run away from home and are in need of employment. The only jobs available are as maids in the mansion of 14-year-old millionaire, Yoshitaka Nakabayashi. What seems like simple work is soon revealed to be far more than the girls bargained for when they find Yoshitaka to be an authoritative employer who demands they call him "Master". (myanimelist.net)

Elected as student council president with 98% of votes, Medaka is a brilliant students who will help students any way she can. This leads to the introduction of a suggestions box, which will later be given the nickname of 'Medaka Box'. Some of the suggestions therein, however, will provide some tough challenges for her and her student council friends. (imdb)