There are many books available that feature cats and are set in Japan or have themes related to Japanese culture. Some options that you might consider include:
She and her Cat by MAKOTO SHINKAI: This popular book is a sweet and tender story about four women and their cats, as they navigate difficult times in suburban Tokyo.
The Cat Who Lived a Million Times by Yoko Sano: This book is a collection of Japanese folktales featuring cats as the main characters and a Buddhist allegory of birth, death and rebirth.
The Traveling Cat Chronicles by Hiro Arikawa: This novel tells the story of a cat named Nana and his journey to find a new home.
The Cat Who Went to Heaven by Elizabeth Coatsworth: This children’s book is a retelling of a Japanese folktale about a cat who is rewarded for his kindness and devotion with a trip to heaven. Set in ancient Japan, and is about a penniless artist and a calico cat his housekeeper brings home.
The Cat Returns by Aoi Hiiragi: This manga series tells the story of a young girl who is whisked away to a magical world of cats after saving the life of a cat prince.
These are just a few examples, and there are many other books available that feature cats and have themes related to Japan or Japanese culture. You may want to check with a library or bookstore or do an online search to find books that are of particular interest to you.