She will finally come face-to-face with the other queen-in-waiting, Leandra. In this game of chess, two queens must make power moves in order to rule the land.

    Unfortunately for her, she's assigned by the school board as the homeroom teacher for class 3-D, which happens to be the class of delinquent students. When the class attempts to make a living hell out of Yankumi's career, they fail as her persistence and aggression gain her respect. However, little does anyone in the school know that Yankumi is actually heir to the Kuroda Ikka - one of Tokyo's most powerful yakuza clans.

    Haru an aspiring writer who has nothing to say, sleeps with a woman his mother's age not just for the money but to work on his "powers of observation". So when Yumi's step-mom turns out to be Haru's sugar-mommy, it is time for shenanigans. A little bit of drinking, a little bit of blackmail and a visit with Croc is enough to change lives and maybe add some color to a comfortable but bland life.Daddy kept Keiko's mom as a pet; she keeps Haru as a pet; I keep Croc as a pet... I Yumiko someone else's pet?? Is she willing to let someone care for her like that?

    Within eighty years of the first outbreak, the male population has fallen by seventy-five percent. Women have taken on all the roles traditionally granted to men, even that of the Shogun. The men, precious providers of life, are carefully protected. And the most beautiful of the men are sent to serve in the Shogun's Inner Chamber...

    Ozawa (26) has just broken up with her boyfriend of five years and was in the process of trying to rebuild her life when she meets Oyamada who lives a couple floors below her. He is somewhat of a loner although he does have a few friends and his room is cluttered with all the random stuff that his impulse shopper brother sends him. Ozawa takes an interest with all the things in his room and the two start a friendship that slowly turns into something more.

    However, her comfortable lifestyle suddenly goes astray when she accidentally plunges into the world of sirens. Entangled in a curse, Lyra will learn that her world may be a lot bigger than she had ever imagined.[Episodes 1-84]