Shin Youngwoo is a complete failure in life and is deeply in debt to an insurance company. He resides with his disappointed parents and his brilliant younger sister, who ranks among the top students at her school. Even in games, such as the popular VRMMORPG "Satisfy," he is a total loser. However, one day, while on a quest, he miraculously discovers a Legendary Book that grants anyone who reads it a previously unseen Legendary Class. He intended to sell it for a large sum of money, but bad luck has always been his defining trait. Due to an unfortunate turn of events, his dream was short-lived, as he was compelled to use the item for himself. His life changed forever from that fateful day...