God of Absorbing

Lin Xueqin transmigrates to become the Lin Family's deceased third elder son but is punished, executed tomorrow in public squares for killing his family members and cultivating an evil technique. Lin Xueqin was unhappy until he had his golden finger ‘absorbing system’.
Before the Black Shadow Rats, he absorbs and receives the Encompassing Concealment Technique.
In front of a horde of spirit stones, he absorbs and his cultivation increases.
In front of thousand corpses, he absorbs and receives the Thousand Faceless Mask.

Starting there on, Lin Xueqin thread to the path of neither righteous nor evil. He is the first cultivator that was a headache of the demonic and righteous cultivators.

....

One day, Lin Xueqin encounters a damsel in distress. But seeing that he can't gain any benefits from her, he indifferently left.

Lin Xueqin: “Saving a troublesome bitch? I don't give a fuck.”