Zetsu first appeared after the battle between Naruto and Sasuke in the Valley of End. He reported directly towards the Akatsuki Leader, informing him on the status of Sasuke Uchiha.

Zetsu later appeared with the rest of Akatsuki in the Land of Sand. While sealing Gaara's Ichibi, Zetsu informed Akatsuki that the Leaf ninja were closing in and so Pein created clones of Itachi and Kisame to stop them. He was then ordered to "dispose" of the bodies of the Itachi and Kisame impostors.

He's seen after the battle between Chiyo, Sakura, and Sasori, trying to find Sasori's ring. There, he found his subordinate Tobi with the ring and asking if he could join. After some arguing with himself, he allowed Tobi to join.

He was then seen after the battle of Deidara and Team 7. Here, he recovered Deidara's ring, but discovered that Deidara was still alive.

Zetsu is then seen after Pein's battle with Jiraiya. Pein explains that Jiraiya showed up out of nowhere shortly after Madara ordered him to capture Naruto. One side of Zetsu asked if he could go with him, but the other side wanted to go watch Sasuke's and Itachi's fight instead.

Powers/Techniques

Zetsu is still a mystery, however he frequently uses the "Leech All Creation: Attack Prevention" technique, which allows him to fuse with anything that does not move, such as trees, rocks, and the ground, allowing him to travel great distances very quickly. Zetsu is also able to move during the Sealing ritual, a skill which he solely holds. This makes him a lookout during the ritual. He also functions as a Hunter-nin, devouring the bodies of victims.