Volume 40

Janken Boy Is Coming! (ジャンケン小僧がやって来る！, Janken Kozō ga Yatte Kuru!) is the fortieth volume of the JoJo's Bizarre Adventure manga. It is also the twelfth volume of Diamond Is Unbreakable. It covers the Yoshikage Kira's New Face story arc, the Janken Boy Is Coming! story arc and the first two chapters of the I Am an Alien story arc.

Chapters

• 105 (370). Yoshikage Kira's New Face (1)
• 106 (371). Janken Boy Is Coming! (1)
• 107 (372). Janken Boy Is Coming! (2)
• 108 (373). Janken Boy Is Coming! (3)
• 109 (374). Janken Boy Is Coming! (4)
• 110 (375). Janken Boy Is Coming! (5)
• 111 (376). Janken Boy Is Coming! (6)
• 112 (377). Yoshikage Kira's New Face (2)
• 113 (378). I Am an Alien (1)
• 114 (379). I Am an Alien (2)