, known by his pen name , was a Japanese author and former yakuza. Outside Japan, he is best known for writing the manga series ' in collaboration with artist Masasumi Kakizaki. As a teenager, Abe became a member of the Ando-gumi yakuza family, and was later recruited by the Koganei-ikka. In 1986, after leaving the yakuza life, he wrote a novel about his time in Fuchà « Prison titled , which became a bestseller and was adapted into a film. Abe died on September 2, 2019, from pneumonia, aged 82.
Abe worked as a flight attendant for Japan Airlines from 1961 to 1965. He was the model for JÃ Âji Miyagi, the main character in Yukio Mishima's entertainment romance novel Fukuzatsuna Kare ( That Complicated Guy) published in 1966. Abe's pen name "JÃ Âji" was adapted from the character in the novel.