In this best-selling, heartwarming tale, a lonely older man takes home a pet-shop kitten that no one else wants. It doesn't take long for the pair to warm up to each other, and soon, they're inseparable. Told through the eyes of both the man and his cat, this sweet and hilarious story is a balm for the soul!

Kanda agonizes over the right cat tower for Fukumaru. Then, a lost dog shows up in Kanda's garden, and Sorako brings it inside?! A familiar face known online as "twinkle_bell" also intrigues a teenager who's stopped attending high school... Although Kanda and Fukumaru's simple life continues to change when Siam gets a new owner, the pair's bond grows deeper than ever.