Bright Sword: Diligence Makes the Instructor

Hard work pays off, and skill brings mastery.

Modern young man Yang Zi'an transmigrates to the War of Resistance era with the Hard Work Pays Off System.

Through his tireless training, he becomes exceptionally skilled in every field, and, more astonishingly, he knows every training method inside and out.

He knows that one person’s strength is ultimately limited. He is only mortal, after all: a bullet or a blast from a cannon could kill him.

So the wisest choice is to pass on his skills to as many soldiers as possible.