C127 A Black Belt Expert!

"Challenge!"

Yamamoto Takeshi reacted quickly. He hurriedly reached out to block it, but he was still a step too late. Being hit by the hard corner of the challenge letter on his face, his face turned slightly red. Pretending to be as if nothing had happened, he saw the three words on the letter. Stunned, he said, "You even wrote the letter of challenge, but don't you think..