Silver Cross

The main character, Kenji Kurosu, whose father, who works for the Metropolitan Police Department, was assassinated by the QQQ group.
A boy bent on revenge is scouted by the "Cross Police", a secret organization that protects world peace, and under the guidance of Black Cross, he becomes an expert marksman named Silver Cross.
A hidden masterpiece of an adventure action manga with a variety of characters and a thrilling story.