Alternative Name:Jack Valentier; Jack Be Invincible; The Margravial Household's Phenomenal Youngest Son; The Marquess's Youngest Son; The Youngest Son of a Marquis; 侯爵家の歴代最強の末息子; 侯爵家的最強小兒子; 史上超强小儿子; 후작가의 역대급 막내아들

Genre(s): Adventure FantasyAction

Demographic:Shounen

Summary:
After getting revenge on the Thulcaan Empire, Jack Valantier took his last breath. But just when he thinks it's all over, he finds himself transpor... MORE After getting revenge on the Thulcaan Empire, Jack Valantier took his last breath. But just when he thinks it's all over, he finds himself transported back to when he was 14! From his negligent and wicked family to his loyal servant and caring sister, it's all just as he had remembered. HIDE