Naruto: Who Dares to Say That Katyusha Is Not a Ninjutsu?

I, Hatake Hotaru, traveled through time and became Kakashi's younger brother, and I was also bound to the [Lack of Fire Phobia System]. System: Ninjutsu? Rolling balls? That thing is too weak and not decent enough! The system felt that the Clone Technique was too low for the graduation test, so it was awarded [Ninjutsu·Desert Eagle] on the spot! I blasted the target with one shot and told the examiner it was a "bullet clone." Iruka-sensei shut down on the spot, and Mizuki looked at me with something wrong! Facing the traitorous ninja Mizuki, I picked up the RPG: "There's no problem that an RPG can't solve!" After one shot, the rebel ninja was gone, and both Iruka and Naruto were stunned. Since then, there has been a pacifist with a cannon in the ninja world. Kakashi (headache): My stupid brother, you call this a ninjutsu? ! Yinghuo (carrying RPG): Brother, times have changed! My way of tolerance is - caliber is justice, range is truth!