Izumi Nobuko
A história se passa em um mundo em que seres extraterrestres chamados parasitas invadem a Terra. Eles se apoderam dos humanos entrando pelas cavidades corporais, com a finalidade de controlar o corpo da vítima. A história se desenrola quando um extraterrestre chamado Migi falha em se apoderar do corpo de Shinichi Izumi, fazendo com que os dois sejam obrigados a conviver juntos.
Kasumi
One night, as pub owner Sotaro is caring for his sick wife, Shizuko, she asks him to promise that if she dies, he will never remarry. Thinking she is just being dramatic, he promises and tells her to go to sleep. When he wakes the next morning, however, Shizuko is dead. Sotaro keeps his promise, until one day he meets Satoko. The two quickly fall in love, and agree to get married. Their first night together, however, is interrupted by Shizuko, who is angry over her husband's broken promise. Sotaro and Satoko must find some way of appeasing the spirit before she drives them from their home.
