Naruto: Tsunade from the Start, I Become a God by Having Kids

Right after transmigrating, he became a nearly drained power bank: the Ryuumyaku of Rouran?

And he's trapped underground, too?

Tatsuno is completely dumbfounded.

Fortunately, he awakens the God-Tier System. As long as he has children, he can grow stronger!

He gets together with Tsunade and has a son. The Ryuumyaku is restored by 30%, unlocking "Time Acceleration"!

He gets together with Mei Terumi and has a daughter. The Ryuumyaku is restored by 60%, unlocking "Spatial Control"!

He gets together with...

When Tatsuno has Tsunade in one arm and Konan in the other, with a row of "Children of the Dragon" capable of destroying heaven and earth standing behind him,

the entire ninja world falls silent.

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.