Under World, Part 1 (アンダー・ワールド その① Andā Wārudo Sono 1), originally Hole (穴 Ana) in the WSJ release, is the one hundred nineteenth chapter of Stone Ocean and the seven hundred thirteenth chapter of the JoJo's Bizarre Adventure manga.
Jolyne and Ermes investigate the room from which a stray bullet killed a bystander, but see that it is unoccupied. Jolyne realizes that the strange shot was likely a test for the new Stand user and enters the room despite Ermes' warnings, seeing a hole leading underground. Although an obvious trap, Jolyne immediately enters it, determined to kill Pucci before he can escape and gives a lifeline made out of a string for Ermes.
Down the hole, Jolyne follows a tunnel she lits with a flashlight, and investigate a suspicious spoon. However, Ermes soon sees that the flashlight's light is no longer visible and futilely tries to call Jolyne. When Jolyne picks up the spoon, she finds herself in a passenger plane. Everything looks normal, but the dates are from 2005, and Jolyne can see Pucci and Versus alongside his Stand Under World. Jolyne is now trapped inside the airplane.