If you're looking for manga similar to Psycho Nyanya Special, you might like these titles.
Before a cat becomes a cat, it's a kitten. From the moment Milly gives birth to her first litter, both she and her children have much to learn about the wide world they live in. Follow Milly and her fluffy, clumsy kittens as they grow through laughter and tears!
A warm and fluffy slice-of-life comedy depicting Yamada and his beloved pet cat Shima's preciously ordinary daily lives.
One day, Haruki, an aloof university student, meets Loulou, the queen-like cat. This is the story of Haruki, who has somehow become able to understand the language of animals, and Loulou, who has a secret. In the midst of many encounters, they search for their one true love.