Nagai Nagai Sanpo

Manga artist Masumi Sudou had a cat. His name was Yuzu. She would chronicle her life with him over the course of multiple essay manga series, such as Donguri-kun and the concisely titled Yuzu. Nagai Nagai Sanpo (lit. A Long, Long Walk) is the last of those chapters, and tells the story of a woman, her beloved cat, and the last of their time together on this Earth.