MTL - Never Fade Skull Flag - Chapter 615 island of terror

This novel is about the young master of the Du clan, Du Shaofu, who was born with crippled veins and is unable to cultivate martial arts . After finding out about his situation from the clan while returning home he got hit by a lightning and a mysterious ‘first scripture’ appears and after studying for ten years he was able to mend his crippled veins together and starts his journey to glory.

God: I shall bestow the Saintess upon you.
Pope: W- wait a moment! This is a boy!
God: That is the Saintess.
Pope: ??????

And just like that, the Saintess was raised by the church for fifteen years without any questions asked…

- Description from Novelupdates

The Heavenly Demon, Baek Jung-hyuk, woke up as the eldest son of the Dmitry family.

He was known as the fool of the Dmitry family. He was trampled on by the second son. What people thought of him didn’t matter.

The Heavenly Demon. No, Roman Dmitry, cannot live a normal life.

Waking up, Kim Hajin finds himself in a familiar world but an unfamiliar body.