The CEO's Invincible Husband

Taxi driver Leo Lewis saves the drugged Zoe Forrest. After being beaten, he awakens the Karma Reversal System, which makes him stronger the more he's hit, and he defeats Mr. Shaw. The two get married due to a misunderstanding, and the heroine's family faces a power struggle. Leo uses the system to help the heroine overcome the crisis, eventually becoming the head of the Forrest family.