I'm Mentally Ill, You Talk About Martial Ethics?

Transmigrating to the Ming Dynasty with a damaged soul, Chen Ji truly has a serious mental illness. While others practice martial arts with worldly wisdom, Chen Ji sees everyone as walking ATMs topped with sin bars! When a bully comes to collect debts and humiliate his long-legged master, she tries to reason, but Chen Ji's mind snaps and he flips the table, smashing the bully's head into a pulp with a zero-wind-up strike! His master panics: 'Chen Ji! You killed him, the Sanhe Gang won't let us go!' Chen Ji tilts his head at the terrified lackey: 'You're right, so let's kill the rest too, and give them a neat family reunion.' The dying enemy wails: 'You have no martial ethics!' Chen Ji grins: 'I'm mentally ill, you talk about martial ethics with me?!' Extreme cultivation, physical body becomes saintly! Sweeping across the world! — Description from novelcodex.org