At the very beginning, Kurosaki Ichigo was just a seemingly slim but full-of-passion violent teenager, living an ordinary life with his ability to see ghosts. His family ran a hospital and also got rid of spirits; he had two absolutely normal sisters and a violent family rule that required him to return home by 7 o'clock every day, otherwise he would be taught a lesson through physical punishment. The noisy father-son relationship, the understanding younger sisters, and the ordinary life were no different from those of other ordinary comic protagonists. It wasn't until Rukia was kicked into the corner by him, looking at him with surprise and asking "Can you see me?" that the prelude was officially kicked off by him.
From then on, everything around Kurosaki Ichigo turned upside down, whether it should or shouldn't.
There are two kinds of souls in the world. One is called "Mod Soul", which is an ordinary spirit. The other is called "Hollow", which attacks and devours the souls of both the living and the dead.
Rukia, who claimed to be a Shinigami (Death God), told him that her job was to perform a soul burial for the Mod Souls and guide them to a place called Soul Society, while eliminating the Hollows. At that time, the Hollow was already nearby. His father was mysteriously heavily injured, his sister fainted in front of him, his heart was pounding with panic, and he somehow unlocked the Death God's Kidou (demon art). Rukia looked at him with surprise. For both him and her, everything was so unbelievable. He had never thought that there were actually Death Gods in the world, and she had never seen or even heard of such a powerful human being.
Under the circumstances where there was no other choice, Ichigo obtained Rukia's ability and became a Death God. The black clothes of a Death God, the Zanpakuto (sword) that changed shape and became huge due to his spiritual power, and the huge and ferocious Hollow - from this point on, the destinies of the two were tightly linked together. Everything was equally without any other choice...