TONO TO INU

The story is set in Japan's Warring States period. It follows Tono, a man who was once a fearful god on the battlefield but has fallen into poverty and is now living in a tenement house, and a dog that he picks up despite his inadequate daily life. Tono is pushed around by the dog, who does not listen to him and spends its time freely and unrestrainedly. (Source: Crunchyroll News) — Description from AniList community (anilist.co).