Guu Guu Datte Neko de Aru

The setting is in Kichijoji. Asako Kojima, a shojo manga artist, had stopped publishing works almost entirely since her beloved cat CaVa passed away. One day, Asako purchases a male American Shorthair kitten at a pet shop and names him Guuguu. With Asako regaining her spirits, those around her begin to anticipate a new work from her.

Asako becomes close with a younger man, Aoi Sawamura. Asako begins preparations for her new work, “Children Born in August,” but she collapses due to ovarian cancer. Asako entrusts Gugu to her assistant Naomi. Sawamura, a medical intern, intends to return to his family home in Shodoshima. Asako undergoes surgery to remove her ovaries and uterus and suffers from the side effects of chemotherapy. In her dreams, Asako encounters Saba in human form. Upon her discharge from the hospital, Asako publishes her new work. Naomi sets off for New York.

Kojima Asako is a writer of popular manga for teenage girls. While she is facing a looming deadline, Saba, the beloved cat she has lived with for years suddenly dies. Asako is no longer able to draw manga after that and also loses her appetite. At the suggestion of her worried editor Omori, she moves to a new house but her life does not return to what it used to be. One day, when Asako is walking in a park, she comes across a homeless person with a sick kitten. She starts wanting to cure the kitten of its illness and brings it to the hospital without permission.

Manga writer Kojima Asako’s lovely days with her cats, her editor Omori’s marriage, assistant Manami’s independence and the whereabouts of the missing homeless man.