Gangster to Idol - Chapter 1: The Gangster and the Idol

Mochizuki Touya, a 15-year-old boy, who got zapped by a flash of lightning due to a freak accident caused by God, wakes up and finds himself face-to-face with God.

A chance to change, to challenge destiny, making dreams a reality, and live a legend! A regular man gains a system that allows him to turn into a fish!

- Description from Novelupdates

He emerged from Hell Tower, one of Earth's most mysterious four forbidden zones, known as the Infernal Black Emperor who strikes terror into the hearts of his enemies!He is also the master of the Yin Yang Divine Needles, instilling fear into the Western world as the Eastern Divine Physician, with the ability to save lives with his left hand and take them with his right!Upon returning to the city, he marries the beautiful CEO of the Eastern Group, only to face his father-in-law's regret at the doorstep.'I excel at two things, saving lives and taking them; the ones I choose to save, not even the King of Hell dares to claim, and those I choose to kill, not even the Heavens can save!' —— Ye Xuan

Marry him for a contract, but it is love that supports them to live together.

In order to raise medical expenses for the seriously ill father, she had to sign a contract with a strange man, she would be his wife, and he was responsible for paying for the treatment of her father.

Life after marriage is very ordinary. He is the CEO of the company. He is busy working every day and occasionally has a look at her, but he is full of disgust. However, she fell in love with him little by little, and she was very sad when facing his indifference. Neither of them knew how to resolve the misunderstanding between them.

After experiencing the death of her father and an unexpected pregnancy, they finally opened their hearts, and sincerely, began a happy life.