Main World.
Year 20 of Konoha, winter.
British Continent, New Capital.
Imperial Palace, study.
Winter sunlight streamed through the window lattice, casting faint patterns of light and shadow across the desk. Toyotomi Yinglang sat behind it, toying with a Jade Seal. Tsunade sat opposite him, holding a cup of hot tea, her brows slightly furrowed.
"Yinglang, why don't you put those good things to use?"
"Use them?"
Toyotomi Yinglang set down the seal and leaned back in his chair.
"No. They must stay in the treasury."
Tsunade's brows knitted tighter.
"Why?"
"Do you know why the Forbidden Techniques Tobirama Senju invented are called Forbidden Techniques?"
Tsunade froze for a moment.
"Why?"
"Because once they spread, they undermine the Hokage's rule."
A cold curve tugged at the corner of Toyotomi Yinglang's mouth.
Tsunade's pupils contracted slightly.
"You mean..."
"By Konoha's logic for Forbidden Techniques, everything in my treasury should be forbidden."
Toyotomi Yinglang lifted his teacup and took a sip.
Tsunade fell silent for a moment.
"The side effects of Forbidden Techniques... refer to their side effects on the leadership."
"Exactly."
Toyotomi Yinglang set down his teacup.
"Everything in my treasury is a strategic weapon capable of changing the balance of the Shinobi World. Among them, those three game-breaking weapons would let even a Genin trade blows with Hashirama Senju. Take enough Secret Medicine, and even a good-for-nothing can become a genius. If you master Unity of Heaven and Humanity, even Sage Mode will be trash before you."
Tsunade's breath caught slightly.
"Then..."
"Tsunade, remember this."
Toyotomi Yinglang cut her off.
"Handing strategic weapons to outsiders isn't broad-minded. It's brainless."
Tsunade lowered her head, looking at her faintly trembling fingers.
"Strength and power generally change hands in only three ways."
Toyotomi Yinglang held up three fingers.
"Bloodlines, mother and child, and