A hitman and a marriage swindler embark on the world's most grueling battle for marriage! Gero is a young man from a clan of hitmen that has existed for hundreds of years. Having never attended school and spent his life operating in the dark side of the business, he considers himself to have "no prospects with women" and views marriage as "something not for him." However, one day, fearing that their lineage would dissolve, his clan warns Gero that if he does not marry and produce an heir, they would have no choice but to...force his little sister into doing "that." Driven to his wits' end, Gero asks the target of his work, a marriage swindler, to...