Reading Legendary Youngest Son of the Marquis House manhwa, Legendary Youngest Son of the Marquis House manga with alternative name: Jack Be Invincible / The Margravial Household’s Phenomenal Youngest Son / The Youngest Son of a Marquis / 후작가의 역대급 막내아들 with Description: After successfully avenging himself against the Thulcaan Empire, Jack Valantier takes his last breath. But just as he believes it’s all over, he is transported back in time to when he was 14 years old. His past memories come flooding back, including his neglectful and cruel family, his faithful servant, and his loving sister. This time, armed with the knowledge and experience from his previous life, Jack is determined to make those who have wronged him pay dearly. With his newfound advantage, he is now invincible.
