Non-tan to Issho

Nontan is the protagonist of a Japanese series of children's picture books by the same name written by Sachiko Kiyono.

In the series, Nontan is a mischievous kitten who likes to play and learns about the world around him. Other characters include Pig, Rabbit triplet, Raccoon, Bear, Bee, and Nontan's little sister Taatan.

(Source: Wikipedia)