Daikichi (Shinosuke Tatekawa) is a 70-year-old man and lives on a small island. Since his wife died, he has lived with his cat Tama. Daikichi was born and raised on the small island and enjoys relaxing days with his childhood friends including Iwao (Kaoru Kobayashi) and his cat Tama. Daikichi has a son Tsuyoshi (Takashi Yamanaka) who lives in Tokyo. Tsuyoshi worries a bit about his father living alone on the island, but Daikichi is content with his life. After his close friend passes away, Daikichi worries about his physical condition. His daily life begins to change. Based on manga series "Neko to Jiichan" by Nekomaki (first published August 7, 2015 by Kadokawa).