A Brave Man from Another World, What Does It Mean That His Strength Is Declining?

"Our brave man was beaten just after he traveled to another world!" "I heard they don't even give golden fingers." "I almost lost my virginity." "There is no king in this other world, right?" "I will open the world barrier later. Barbarian, rush over and hit anyone you see, especially the golden-haired goddess!" Lishen: [OK gesture]! ... Chen Xian traveled through time. In the world he traveled through, there were brave men and demon kings, as well as goblins and slimes. But why is his system called [Weakening Strength]? System: [Throw away the sword of the brave warrior of Laoshizi first, and still act like a shitty warrior! Chen Xian: Then what weapon should I use? System: [Fist! Everyone loves to play with fancy things, but their strength has weakened. Go and tell them what it means to have a weakening strength! Chen Xian: Huh? Just like this? System: [Nonsense, hit anyone you see! Especially those golden retriever ladies!