SO Chapter 83

F.F. - The Witness, Part 1 (・-目撃者 その①), originally in the WSJ release, is the eighty-third chapter of Stone Ocean and the six hundred seventy-seventh chapter of the JoJo's Bizarre Adventure manga.

Summary
Anasui orders Yo-Yo Ma to move to the corner of the boat. Anasui steps on its head and commands it to take out everything in its pockets, unfazed by the holes opening in his arm. Yo-Yo Ma pulls out many miscellaneous items from its pockets as holes start opening in Anasui's ear. The Stand explains that, as an automatic one, its target is fixed, and will not go away until Jolyne is dead.

Anasui strikes Yo-Yo Ma's head with Diver Down, but with no effect as holes start to appear on his leg. Jolyne realizes that it must be attacking with the swamp water; as the water splashes onto the boat, holes appear where the water makes contact with Anasui or Jolyne. Anasui doesn't realize this however, and commands Yo-Yo Ma to speed up the boat. Yo-Yo Ma then begins acting like a frog, and goes to speed up the boat after eating a rhinoceros beetle. Even though the boats speed remains the same, the attacks have stopped.

Yo-Yo Ma hops into the boat's propeller, and then hides from the birds flying over head. Anasui reveals that when he struck its head, he used Diver Down to implant a frog into the Stand's brain. Yo-Yo Ma tries to continue its mission, but is distracted by its frog instincts. Anasui and Jolyne can now rest and wait for F.F. to defeat D an G.