Three Sound ninja (Dosu Kinuta, Zaku Abumi, and Kin Tsuchi), under Orochimaru's orders, entered the Chūnin Exam with the goal of killing Sasuke Uchiha. However, Orochimaru was actually using them as test subjects for Sasuke's power after Orochimaru gave him the Cursed Seal. Later, Otogakure assisted Sunagakure in invading Konoha. With Orochimaru being sealed by Itachi Uchiha, the fate of the village was unknown for a long time until it was reformed by Hēi to act as his base of operations. He collected numerous Sound ninja and attacked the Land of the Sea with the intention of building Otogakure as a proper village there. He conquered the country and convinced its daimyo to let him establish his own ninja village there. He also renamed the land as the Land of Sound.