How Fortunate I Am to Spend This Life with You

She escaped from the K Group's assassin training camp, but the organization killed the person she loved. She pulls herself together and becomes a special forces soldier, using an arms kingpin's power to fight back against the K Organization, which brought her endless suffering.

This heroine doesn't need the hero or any other man to protect her. She's an expert in hand-to-hand combat, racing, and weapons. She may have her low moments, but she never lacks fighting power.