"Mr. G: The Romance of Revenge" is a dramatic story full of mystery and suspense, following the life of "Mr. G," a 19-year-old young man who loses his father in a mysterious incident, which he believes was caused by the police. Despite the cruelty he endured from his father, Mr. G discovers through a letter his father left behind that his father truly loved him, and that his harshness was meant for his own good.
As time passes, Mr. G's feelings begin to turn toward revenge against anyone he believes is responsible for his father's death. During his relentless search for the killer, he meets "Siren Marin," a 17-year-old intelligent and independent girl, and the daughter of the police chief, the person believed to be responsible for his father's death. As Mr. G becomes romantically involved with Siren, the inner conflict between his desire for vengeance and his love for this girl-whose father's involvement in the crime he remains unaware of-intensifies.
While Mr. G uncovers devastating secrets about his father's past and his connections with both the mafia and the police, he finds himself facing a major challenge between seeking revenge and preserving the relationship he's begun with Siren, who lives in the shadow of her father's complicated past.