Tsunade's so-called Monster Strength was not, at its core, pure physical strength. Instead, she used incredibly precise chakra control to concentrate her chakra in a particular part of her body, unleashing unimaginable destructive power.
In other words, anyone with a certain level of chakra control and a sizable chakra reserve could achieve the same effect.
As it happened, Shinichi met both requirements-and even surpassed Tsunade herself!
"Lady Tsunade, trying to beat me up the moment we meet? That's a bit much."
Shinichi teased her.
"You little brat!"
The sight of Shinichi's amused smile infuriated Tsunade. She launched another Heavenly Foot of Pain, trying to send him flying.
She felt that someone was challenging the Monster Strength she took such pride in. How could she stand that humiliation?
This time, she stopped holding back and put her full strength into the attack!
"Tch!"
Shinichi frowned slightly. He hadn't expected to actually rile the old woman up this much.
But he was no pushover, either!
"Then I'll use it too... Heavenly Foot of Pain!"
His kick was almost identical to hers, but the force behind it was far more ferocious than Tsunade's Monster Strength.
Tsunade didn't even have time to react before she was sent flying, slamming hard into a distant wall.
"That little brat Shinichi! Doesn't he know how to treat a lady?"
Watching the woman of his dreams get mercilessly kicked away broke Jiraiya's heart.
Still, he wasn't foolish enough to jump out and reproach Shinichi. He knew that someone as strong as Tsunade wouldn't get hurt so easily.
Had Shinichi known what Jiraiya was thinking, he might have dry-heaved right in front of him.
Tsunade was old enough to be his grandmother! Treat her like a delicate lady, his ass. Why not tell him to respect his elders instead?