Naruto: Tsunade Wife, Should Be Raised From Childhood

The system is ruthless and sharp. No saintly heroes — read with ease. Reborn as an Uchiha, he punches Orochimaru, kicks Jiraiya, and teases an undeveloped Tsunade. Since he's decided to marry her, he'll raise her from childhood! Flat now? No worries — he knows how magnificent his future wife will become. Who else can enjoy raising her from a young age? With a manual and system, he becomes the strongest of his era. Rinnegan? Sage Mode? Forbidden jutsu? Aren't those free system giveaways? What? Kaguya Ōtsutsuki revived? Why are you all staring at me? Naruto...