Military: Kicked the Boss at the Beginning

Military Stories (Special Forces, SWAT, Firefighting, Etc.), No Female Protagonist

From Frontier Soldiers to Special Forces

The protagonist is a frontier soldier. From Chapter 1 to Chapter 10, a drug lord kills his respected squad leader. From then on, he begins to rise.

The Male Protagonist Is a SWAT, Special Forces Soldier, and the Female Protagonist Is Good-Looking.

Military: Entering the Military Academy, System, Single Female Protagonist, Invincible.

I want to read a book like "My father kidnapped me to serve as a soldier, and the whole army begged me to become an instructor."

Looking for Special Forces, the Male Protagonist Is a Tough Guy, Very Awesome, He Goes Against the Instructor

Special Forces + System + Multiple Women