CatNiP

(from ebookjapan):
The long-awaited sequel to "Even Gou-gou is a Cat" is here.

Joy and sorrow, life and death are always side by side.
Gou-gou, Tenmike, and Kuro are now deceased. And Tama, who lost the sight in his left eye, Kijitaro, who imitates Gou-gou, Tora, who has a dual personality, and Bee, who never fails to go to the bathroom....... This masterpiece essay manga gently (and sometimes harshly) describes the days of interacting with these cats, each of whom is full of personality.
"Catnip" is the name of the herb cats like.