Arachi: First Irregular

Born to a mother who was sealed in a mysterious ark with ten longevity on it, Arachi, who has tremendous power, hides her power and is now the wife of the HS group and an ordinary housewife. While leaving for Gangwon-do with his wife and mother Hwang Shin’s family, his son Soo-Hyuk and Sunmi were seriously injured and lost consciousness. In order to protect his precious family, Arachi borrows the status of Sunmi, not Hwang Shin-Hye, to awaken the power of the past to find the person behind him. Arachi, he’s coming out into the world!(Source: KakaoPage, translated)