Everything is because of a sword falling from the sky.
"I heard that his master is an extremely powerful man."
"Yes, it was the case before but not anymore."
"Then how do you compare with him?"
"He is not as good as me, and I am not as good as my old friend."
"He is?"
"Old friend."
"…"
"…"
"Aren't you already invincible? How can you do it again?"
"It's just a false name. I'm not as good as him. I didn't keep the sword in my heart."
