Yi Qiu Shan, a swordsman from the Qing Jiang sect (he was the apprentice of the swordsman who forged Smile Qing Jiang in his later years, so Yi Qiu Shan can be said to be the younger brother of Xiao Mian Qing Jiang and Suzumaru Tsuneji). One autumn, he was rescued by an old man who was semi-reclusive in the mountains and forests. The knifemaker expressed his gratitude to the old man. When he was worried about how to repay the old man, the old man said, I live in semi-seclusion in this mountain forest and plant flowers for a living. Although I am a little poor, I am very close to my heart. The only bad thing is that the forest beasts in the mountains occasionally disturb me. If you really want to repay me, why not Make me a short knife for self-defense. The knife maker listened to the old man's advice and went down the mountain to forge the knife. After three months, he forged the short knife that he wanted. He named it Yiqiu Shan, which means remembering what he encountered in the mountains in autumn. After that, he gave the short knife to the old man. Later, he never gave up the knife again. No one had seen the old man and the dagger, so some people speculated that the old man was the mountain god of that mountain. After accidentally saving the swordsmith, the swordsmith was worried about how to thank him, and the mountain god happened to lack a sword to defend himself, so he asked the swordsmith to forge a dagger for him.
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