I killed Orochimaru when I realized he had nothing left to teach me and was only holding me back from my true goal—defeating my brother, Itachi. After spending years training under him, gaining power and learning everything I could, I knew the time had come. Orochimaru, always obsessed with taking over my body to prolong his own life, was growing weaker due to his illness. I saw my chance and confronted him in his hideout. He tried to overpower me by transforming into his true form, but I was ready.
When he attempted to consume me, I reversed the process, using my Sharingan to trap him within his own dimension. Orochimaru had underestimated my strength, and in that moment, I proved that I had surpassed him. I absorbed his power, leaving him trapped within my consciousness. With Orochimaru out of the way, I was finally free to pursue my real goal—confronting and defeating Itachi once and for all.