Yasutora Sado (茶渡 泰虎 Sado Yasutora ) is a teenager who studies in the same class as Ichigo Kurosaki. Because Ichigo first read Yasutora's name off a nametag, he pronounced hisfamily name as Chad (チャド Chado ) due to the variable pronunciations of kanji, and Ichigo continues to call him this throughout the story. When first introduced, Chad had no special powers aside from his unusual strength and endurance. After his encounter with the cockatiel containing the soul of Yūichi Shibata, he starts to detect the approximate locations of spirits and hollows, but cannot fully see them. Only after saving Karin Kurosaki from a hollow, during the hollow-slaying match between Uryū and Ichigo, did Chad begin to fully see spirits. At the same time that he becomes able to clearly see spirits, he also awakes his latent spiritual ability, which manifests as armor on his right arm called the Brazo Derecha [sic] de Gigante (巨人の右腕（ブラソ・デレチャ・デ・ヒガンテ） Buraso Derecha De Higante , Spanish for "right arm of the giant". Japanese for "giant's right arm").Chad's armor increases his strength beyond its already impressive level, and enables him to fire powerful energy blasts from his fist. After training with Renji, Chad gains an improved version of his armored arm. He also gains a new special attack called El Directo (巨人の一撃（エル・ディレクト）Eru Direkuto , Spanish for "the direct". Japanese for "giant's strike". "Directo" is the Spanish term for 'jab' in boxing.) To perform it, the flanges on Chad's arm open up and he punches the enemy.
While in Hueco Mundo, Chad states that his powers are closer to that of a hollow's and that they were affected by the environment, allowing him to more deeply tap his powers, which manifest as armor on both arms, instead of just his right. In addition, he also gains the ability to move at high speeds in a manner similar to flash steps and sonido. Chad's full-powered right arm is still called the Brazo Derecha de Gigante but is now used for defense instead of offense (though it's still more powerful offensively than his original arm). Brazo Derecha de Gigante becomes a shield that extends from his hand to some distance beyond his forearm with the same intricate pattern as before. Chad's armored left arm, used for attack, is known as the Brazo Izquierda [sic] del Diablo (悪魔の左腕（ブラソ・イスキエルダ・デル・ディアボロ） Buraso Isukieruda Deru Diaboro , Spanish for "left arm of the devil". Japanese for "Devil's left arm"). With this arm, Chad gains a special attack known as La Muerte (魔人の一撃（ラ・ムエルテ） Ra Muerute , Spanish for "the death," Japanese for "devil's strike"), a powerful fist containing energy from all his fingers.