Ichigo Kurosaki is the protagonist who becomes a substitute shinigami after absorbing Rukia's powers. Orihime Inoue is an orphan who develops spiritual powers after her brother's death. Uryū Ishida is a Quincy who initially rivals Ichigo but later becomes his friend. Kon is Ichigo's modified soul that allows him to hunt Hollows while maintaining human life
Arrancar are Hollows who have removed their masks to gain Shinigami-like abilities. Aizen created full Arrancar using the Hōgyoku technique. Arrancar are numbered 11 and above based on their birth order
The Visored are Shinigami who gained Hollow powers through Hollowfication. They appear human except when using Hollow powers. They are former captain- and lieutenant-level Shinigami. They are considered criminals by Soul Society for acquiring Hollow powers
Agent of the Shinigami arc covers chapters 1-70, aired 2004-2005. Soul Society arc follows Ichigo's journey to rescue Rukia from Shinigami prison. Bount arc focuses on Bounts' invasion of Soul Society. Arrancar arcs cover chapters 183-251, including Ichigo's rescue mission
Shinigami Zanpakuto come in two forms: Shikai and Bankai. Bankai is extremely rare and can only be used by strongest combatants. Ichigo Kurosaki's Bankai Tensa Zangetsu is considered most powerful
Gotei 13 protects Soul Society and Human World from Hollows. Each division led by a captain with unique abilities. Only strongest Shinigami are capable of protecting society