He is notorious amongst recruits and Academy cadets as a strict instructor .
As the senior non-commissioned officer in Alpha Team , Dae - young is a career military man who sticks to his principles and is extremely loyal to his commanding officer Si - jin and comrades .
Si - jin is notorious amongst recruits and Academy cadets as a strict instructor .
As the senior non-commissioned officer in Alpha Team , Dae - young is a career military man who sticks to his principles and is extremely loyal to his commanding officer Si - jin and comrades .