The Prodigal Son Kenshin

He has a sharp sword that is unparalleled in the world. He has five senses that can see everything. Once in another world, he could wave the sword in his hand and create his own legend. But now, the past has passed, and he has returned to reality, home, and the peaceful city. There is no killing in the city, so the sword can only be discarded. There are no enemies in the city, so the five senses can only fade away. But is a good sword really just a matter of watching it lose its edge? Is it true that one can only watch and let the five keen senses gradually become dull? He was sighing, and so was the sword. And after sighing, should we die in silence? Or crazy in silence? He was asking, and so was the sword.