By A.D. 2010, all men have died off quickly due to a dramatic change in the environment and an unknown contaminant. The population decreased to the lowest number ever seen...until only the women were left alive. They live huddled in small corners of a world mostly reclaimed by nature. There are those who accept their inevitable extinction and live a carefree life... There are those who try to continue on the race with the help of science... It is a society of constant conflict over their differences of principles and policies. The story takes place in the center of Tokyo. It is one of the places left for them. The conflict over the specimen of "ICE" and the chance it may provide to save humanity begins.
A nonsense comical mystery. Harumi Kazuhito is a high school boy who loves books and is a fan of novelist Natsuno Kirihime. One day, he finds Kirihime writing at a cafe, about to be shot by a robber. He protects her from the attack but is killed instead. Through the supernatural power of a book-worm, he is reincarnated as a dachshund dog. Kazuhito (as a dog) writhes in a painful bookless life, when a sadistic woman carrying a pair of scissors offers him help. She is Kirihime herself.
Set in the city of Nagasaki, the story takes place in a world where a minuscule amount of magic remains in everyday life. Hitomi Tsukishiro is a 17-year-old descendant of a witch family who grew up with stale emotions, as she lost her sense of color at a very young age. Feeling sorry for her granddaughter's future, Kohaku, a great witch, sends Hitomi to the past, the year 2018. Through exchanges with her 17-year-old grandmother and her club members, the story follows Hitomi's growth as a person.