Hoegwihan Yongbyeongeun Da Gyehoegi Itda

Synopsis

The 7th Continental Mercenary King, Ghislain Perdium, started a great war to avenge the fallen Perdium family. While all the revenge was coming to a smooth conclusion, an unexpected figure, Aiden, appeared and thwarted Ghislain's plan, and beheaded him. Ghislainthought he would die, but when he opened his eyes, he had regressed to the young Ghislain he was before the family's downfall. In order not to repeat the painful mistake, he began to put the pieces back together one by one using the knowledge and power he had from his previous life. (Source: Naver, translated)