Rooftop Sword Master : Arachi The First Irregular summary: 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 HS group and an ordinary housewife. While leaving for Gangwon-do with her family, they got hit by a truck and her two sons Soo-hyuk and Seon-mi were seriously injured and lost consciousness. In order to protect her precious family, Arachi borrows the status of Sunmi, instead of Hwang Shin-hye, and awakens her past power to find the person behind the attack. Arachi, she’s coming out into the world!