Kill one person with the weapon spirit

The protagonist traveled through Under One Person with his weapon spirit. Seventy years ago, the protagonist's weapon spirit established the world's largest alien world force! The initial ability was the Qi in Dragon Ball, gun fighting and Jade Slip Nine Songs as the main fighting methods to defeat Yin Wu Lei. Gun fighting defeated Jia Zhengliang's Twelve Immortal Flying Knives. Jade Slip Nine Songs defeated Wang Ye Feng Hou Qi Men. "It's like a silver needle pouring down, killing all the remaining leaves in the world!" I saw that the five of the seven men in black each held a small urn in their hands. Then the seven people knelt down and kowtowed to Tang Miaoxing three times...