For those who love the retro manga from the 80s, I highly recommend this one. Luckily, I came across this manga when I was tidying my brother bookshelf. The original Japanese version includes two volumes (but for the Thai version I have, it has one volume, which combines the original volumes together). The story (by Marley Caribu, 狩撫麻礼, who sadly passed away in 2018) concluded the atmosphere of the 80s + jazz lover. The main protagonist (Reiji Ariyama), a Vietnamese war veteran professional killer (also a talent pianist) tried to seek the meaning in his life after returning from the war through jazz music. The author and illustrator (Tadashi Matsumori, 松森正) could combine the taste of 80s along with the action storytelling well.