Poker Under Arms

Buso Poker (武装ポーカー) is a Japanese shōnen manga one-shot written and illustrated by Hirohiko Araki.

Having been a "Selected Work" runner-up at the Tezuka Awards, this Wild West one-shot was Araki's first published work and his official debut as a mangaka.

A tankōbon of Araki's other manga, Gorgeous Irene, also features Araki's original works, including Buso Poker.

Trivia

 * Some of the characters in this seminal work bear a similar appearance to others in JoJo's Bizarre Adventure.
 * One of the main characters, Mike Harper, has a similar appearance to Robert Edward O. Speedwagon.
 * The narrator of the story, having once looked like a old bum, bears a striking resemblance to Dario Brando.