Set three shallow bowls: flour in one, beaten eggs in another, panko in the third.
Pat chicken dry. Season with salt, pepper, garlic powder, and paprika.
Coat each tender in flour, shaking off excess.
Dip floured chicken into the egg, letting extra drip off.
Press into panko until fully coated. Set on a rack for 5 minutes.
Heat oil in a large skillet to about 350°F over medium heat.
Fry tenders in batches, 3–4 minutes per side, until deep golden and 165°F inside.
Drain on a wire rack and season lightly with salt. Serve with katsu sauce.