After Rukia is injured protecting Ichigo, Ichigo takes over her duties as a Soul Reaper. He is aided by his friends Chad, Uryu, and Orihime, who all develop their own unique abilities to help Ichigo in his fight against Hollows.
As the story progresses, Ichigo and his friends learn more about the world of Soul Reapers and the history of their conflict with Hollows. They also encounter a variety of other characters, including other Soul Reapers, Hollows, and even Quincy, a group of humans who are able to use spirit energy to fight Hollows.
The main storyline of Bleach follows Ichigo and his friends as they investigate the disappearance of Rukia and eventually confront the main antagonist of the series, Sosuke Aizen. Along the way, they must also deal with the threat of the Arrancar, a group of Hollows who have evolved into powerful beings that are capable of challenging Soul Reapers.
The story of Bleach is full of action, adventure, and suspense, as Ichigo and his friends fight to protect the world from the forces of evil.