ICHIGO KURASAKI

 Ichigo Kurosaki is a 15-year-old boy with the ability to see spirits, something that he considers more of a bother than a gift. One day he meets a Shinigami (Death God) named Rukia, who's on the run from a Hollow—a destructive spirit with unfinished business on Earth. As a last-minute measure, Rukia transfers her powers to Ichigo, whose abundant supply of spirit energy makes him a far more potent Shinigami than she ever was! Soon Ichigo is vanquishing Hollows left and right, and meeting other friends at school with similar abilities. However, Rukia's transfer of power is forbidden by the Soul Society (the official name of the spirit world), and when their agents come to Earth to dish out the consequences, Ichigo finds that he might have to challenge the entire world of the dead to save her.

IT is the first form of Ichigo kurosaki...which is been given by Rukia a soul reeper.

Now during the saving of Rukia from the execution he transformed into its 2nd form which is call Bankai..

after saving Rukia , the internal hollow of ichigo tried to over come on the ichigo ... but ichigo successfully get rid of that hollow and become the master of hollowfication...

but after some time ichigo's kuraski dearest friend Orihime Inoue have been kidnapped by the Aizen . so to save the life of Orihime Inoue ichigo converted into his 4th form hollow

To save the soul world and real world from AIzen, Ichigo transformed into final getsugo tensau which after completion lost his soul reaper powers. 

after Winning the battle against Aizen , Ichigo kurasaki lost his soul reeper power which is then regain by fullbring .