Uesugi Tetsu's Retirement Life, Kaga Kiyomitsu Awakens! A Death That Changed the Course of the Present World

August 8, 2024, early morning, clear skies.

The midsummer air was scorching, slowly roasting every fool who dared venture outside.

"Phew..."

"Phew... phew..."

"Yes, that's it. Raise your leg a little higher."

"Not enough, not enough. Still not deep enough. You need to lift onto your toes, too, so you can find the exact position."

"Close your eyes. Reduce your senses so you can feel more precisely how it's entering bit by bit."

"Master, it hurts..."

The girl clenched her whitening lips and forced a few words through her teeth.

The pain that made Chisa unable to hold back her cries was enough to make an ordinary adult black out and collapse.

"Hurts? If it hurts, that means you're training the right place!"

Uesugi Tetsu pressed down on Chisa's trembling supporting leg. When he felt the trembling lessen, he nodded in satisfaction.

"It's precisely because 'qi' has entered your body that your legs are trembling and your entire body is experiencing tearing pain."

With one sweep of his eyes, he spotted every flaw in Chisa's movements and proceeded to make another set of incomparably precise adjustments.

Chisa, her eyes tightly shut, was just about to take a deep breath when Uesugi Tetsu suddenly spoke.

"Don't move. Keep breathing evenly like this until you reach your limit."

The girl immediately gritted her teeth and remained as motionless as a plaster statue, struggling to draw in the unbearably hot air through her small nose.

Uesugi Tetsu studied Chisa's pale little face and sweat-soaked body without the slightest hint of pity.

—If you wanted to become stronger, you had to pay the price.

And among all the possible prices, time and sweat were by far the cheapest "costs."

Under the scorching sun, Chisa half-crouched while supporting her entire body with only the toes