Goshushu-sama Ninomiya-kun

Shungo Ninomiya has been trained at hand-to-hand combat since his youth thanks to his older sister, Ryoko. Due to her mercenary missions, Ryoko, has had to leave Shungo alone to care for himself starting at a very young age. He is now a high school student and about to meet his most difficult challenge ever!!

Ryoko invited Mayu and Mikihiro Tsukimura (siblings) to live with them in the huge home they occupy. Mikihiro wants Shungo to help his sister, Mayu, get over her androphobia (fear of men). The problem is Mayu is not only beautiful, she is a succubus (someone that easily attracts the opposite sex in an almost hypnotic manner). However, succubi can drain a person's life force by simply kissing them. It is now up to Shungo to protect Mayu from countless salivating men while controlling his inner urges as well.

Goshushu-sama Ninomiya-kun the anime began airing in Japan on October 4, 2007 and consists of 12 episodes. If you can get over the oversized breasts and sexual innuendo, this can be a very enjoyable series. In fact, it almost has a Full-metal panic feel to it, but that is just my opinion (which really doesn't account for much (^_~)').

Official Japanese Site