```
As the sword rose and fell, despite Yamamoto Kei's advanced age, his explosive power was much stronger than Tang Bin's, whom Yi Xiaofei had faced before.
Clang!
The katana in Yi Xiaofei's hand swung to block, but as the two blades clashed, sparks flew from the friction. Accompanying the vibration from the force, Yi Xiaofei's hand holding the sword felt slightly numb.
"To block this old man's strike, you've got skill!"
Yamamoto Kei had used nearly eighty percent of his strength in that strike, yet Yi Xiaofei hadn't even bent his body. Despite Kei's age, he had never stopped training, possessing a physique that was remarkably robust.
"My skill has just begun!"
The squeal of the katanas meeting, together with the friction between them, resulted in a sharp noise and Yi Xiaofei rapidly adjusted his footing.
Clang! Clang! Clang!
Beyond the clashing of their katanas, their battle of Yuan Gang Force continued, surging from within their bodies, each trying to suppress the other.
