我不美不萌但爱你我不帅不好但护你
[wŏ bù mĕi bù méng dàn ài nĭ wŏ bù shuài bù hăo dàn hù nĭ]
This expresses the sentiment that despite not being conventionally attractive or cute ('not beautiful,' 'not charming'), one still loves another, reciprocated by someone who isn't handsome but is protective. It's a declaration of unconditional love.