Asako, a comic book artist in her early forties, is devastated by the death of her precious cat, Saba, which kept her company for over 15 years, as her assistant Naomi watches on with concern. Naomi is a young woman in her early twenties, who has her set of worries about love and future. Then one day, Asako meets a new cat, Gu Gu, which brings new joy and vitality to her life. What is more, she finds potential for love in a man named Seiji. Like Asako, Naomi, too, embarks on a new life plan.