This Water Shadow is Very Strong, But Overly Cautious.

Reborn in the Naruto world during World War II, Mizunoe Ryosuke became an ordinary ninja in the Hidden Mist Village. Just when he thought that he only needed to practice ninjutsu and lie down to be a slacker. An accident made him sit on the position of Mizukage. The most "stable" Mizukage was born. Killing someone must be followed by scattering their ashes, and everything must be planned before action. Sarutobi Hiruzen: "I know five kinds of attribute escape techniques, what? You can do it too?" Uchiha Madara: "Besides Hashirama, I have another opponent I recognize." Black Zetsu: "This kid is too strong. I'm afraid that even if my mother is resurrected, she can't beat him..." Terumi Mei: "As long as you are the Mizukage for one day, I will be at ease as the wife of the Mizukage." Tsunade: "OMG, I quit being a Hokage! I'm going to the Hidden Mist Village to grab a man!"