背着书包打怪兽
[bèi zhe shū bāo dă guài shòu]
This nickname conveys a playful mix of childlike innocence and the adventurous spirit. It evokes images of someone ready for both study ('with backpack') and battle or challenge ('fighting monsters'). This often signifies an attitude toward facing life's difficulties courageously yet lightly, or it may reflect a love for gaming where school kids face challenges or adversaries.