The Defective Squad

With a spiritual power value of 0.03, roughly equivalent to a pot of pothos, shut-in Gu Ci spent three years as a 'plant-type awakener' until a knife grazed his hand—he copied all the abilities of the knife's owner. His power: touch someone's exclusive weapon and copy everything about them. Sounds strong? The problem is, who would let a stranger touch their weapon? To get more 'weapon access,' he recruited three equally unreliable teammates: a tough guy who can only protect a palm-sized area, a sharp-tongued girl who sees through everything but is frail, and a socially anxious sword-flying cultivator whose flying sword works only intermittently. Four defective individuals form the city's most absurd civilian squad. They take the worst jobs, get beaten the hardest, and then turn the tables with the slickest moves. They say, we're trash, but we don't back down. — Description from novelcodex.org