To whom do we pour our whole life? Who do we dedicate our lives to? Arc Salvadre is a woman skilled in handling and using various types of weapons, from ancient weapons such as katanas to modern weapons such as guns. Known by the title 'Miss Arc', she is a well-known female bodyguard from the third generation of the McRoland family and the third generation of the Golden Triangle, known for its illegal activities. Lucas 'Lucs' McRoland, the most ruthlessly feared in the entire mafia organization, is the third leader of the Golden Triangle. But who are they to the people who know them? Lucas is the sweet and caring boss of the mafia, Arc is good at everything, he doesn't smile but he's very caring at the party and he'll treat you like his own son. Both are aware of their responsibility during work hours. Arc he is Lucas' head of security known as Señerito. A normal and normal life, until Arc finally imitated the young woman who moved away from the family she was once called to, to start a new life for the new members of her life.