The Chakra throughout Tsunade's entire body surged out, the visible flow of Chakra forming a layer of translucent aura around her.
She stomped her feet on the ground, and the stone slabs beneath her tore open, with cracks spreading out in a fan shape for several meters.
She mobilized a portion of the Chakra from her Yin Seal, and her overall speed, strength, and perception received a qualitative boost.
Naruto put away his relaxed expression. He drew three Kunai from his ninja tool pouch and threw them toward Tsunade, while simultaneously forming hand seals with both hands.
Shuriken Shadow Clone Technique!
In mid-air, the three Kunai multiplied into dozens, each coated with a layer of Wind Chakra.
Tsunade clenched her right fist and slammed it onto the ground in front of her. A large amount of rock erupted in front of her, forming an irregular protective rock wall.
Dozens of Kunai clattered into the rock. The cutting power of the Wind Chakra left dense gashes on the rock surface, but it failed to penetrate the rock wall completely.
Naruto had anticipated this. The moment Tsunade shattered the ground, he had already activated Swift Release, his body rushing into Tsunade's blind spot at her side.
"Kid, I've been waiting for you!"
Tsunade twisted her waist and threw a punch with her right hand, slamming it toward the direction where Naruto appeared.
Naruto utilized the extreme mobility of Swift Release to accelerate again during the extremely short window before Tsunade's punch was fully unleashed, circling to her other side.
At the same time, a Rasengan formed in his right palm.
Rasengan!
Tsunade's punching posture had not yet fully retracted, leaving her entire right torso in a brief period of power vacuum.
Naruto's Rasengan was aimed at the center of her back, the timing precisely locked onto the split second where her right fist had missed and her left arm hadn't yet had time to recover for defense.
The Rasengan pressed straight toward Tsunade's back.
Just as it was about to make contact with Tsunade's back, the corners of her lips curled into a cold sneer.
She twisted her waist and swung her left fist back at the Rasengan with incredible speed and angle.
Chakra Enhanced Strength!
The explosive Chakra collided head-on with the irregular rotating Chakra of the Rasengan in mid-air.
Crack!
Naruto felt the terrifying power coming from Tsunade's fist. The rotating layer of the Rasengan was forcibly shattered by the explosive impact of her Chakra Enhanced Strength the moment it touched her fist, and blue Chakra fragments splashed outwards from the point of impact.
Naruto was pushed back several steps by this reaction force, only stabilizing his footing after his feet left several white marks on the stone slabs.
"Kid, how was that?" Tsunade retracted her left fist and flexed her hand.
"As expected of the Sannin. Your combat experience is incomparable to an ordinary ninja. To be able to twist your body and launch a counterattack at such an angle while in that posture—this kind of muscle reaction isn't something you can acquire just by training. It's an instinct carved into your body from countless life-and-death battles."
Naruto shook his right hand, which had been numbed by the impact. Far from looking dejected by the setback, he revealed a sincere smile.
"Since Granny Tsunade is already getting serious, I should get a little serious too."
Multiple Shadow Clone Technique!
Over twenty Shadow Clones exploded into existence simultaneously on the open ground around Tsunade, densely occupying every position on the ground and the rooftops.
"Shadow Clones, huh? Human wave tactics don't work on me. No matter how many there are, one punch is enough." Tsunade looked around at these identical Narutos.
"Go, everyone!"
In an instant, ten Shadow Clones moved simultaneously. Each of them activated Swift Release and charged toward Tsunade from different directions.
It wasn't a straight-line charge, but a rapid weaving through the space around Tsunade with irregular, changing trajectories.
'This speed again... what exactly is this? Kekkei Genkai?'
While rapidly dodging and blocking amidst the siege of the ten afterimages, Tsunade frantically searched her mind for all known types of Kekkei Genkai.
She used her Chakra Enhanced Strength and Heavenly Foot of Pain alternately in close-quarters defense.
Meanwhile, the ten Shadow Clones on the periphery who were not participating in the siege spread their hands and condensed Rasengans.
Unlike an ordinary Rasengan, the volume of the Rasengans in their hands was constantly compressing. They were compressed from the size of a basketball down to only the size of a ping-pong ball. While the volume shrank, the density of the internally rotating Chakra did not decrease.
"The Rasengan can be shrunk?" Jiraiya's eyes widened.
The core principle of the Rasengan is Chakra shape transformation, and the key to shape transformation lies in maintaining the high-speed rotation of Chakra within a stable space.
The smaller the rotation radius, the higher the requirement for precision in Chakra control. To be able to compress a Rasengan to this size while maintaining stable rotation—this level of Chakra control far exceeded his understanding of Naruto.
The ten Shadow Clones on the periphery completed the condensation of the compressed Rasengans at the same time. They raised their hands and shot those ping-pong ball-sized compressed Rasengans toward Tsunade.
Tsunade had just elbowed back two Shadow Clones engaged in close combat when, the next second, dozens of compressed Rasengans shot toward her.
She punched the ground to shatter it and raise rocks, but this time, the rocks failed to block them.
The compressed Rasengan passed directly through the rock and continued shooting toward her.
Tsunade was forced to dodge continuously behind the rock. Several compressed Rasengan grazed her shoulders and legs, the high-speed rotating Chakra cutting several marks into her clothing.
"The Rasengan can be used like this?" Jiraiya let out another exclamation.
He had already decided that after this battle, he would ask Naruto about the principles of the compressed Rasengan.
If this thing could be combined with the Flying Thunder God Technique for a long-range surprise attack, even his Needle Hell might not be able to fully defend against it.