假装微笑我背后的伤谁懂
[jiă zhuāng wēi xiào wŏ bèi hòu de shāng shéi dŏng]
This net name implies that the person always forces a smile, hiding their true pain and sorrows behind it. It's like saying only the person knows about the inner wounds they are bearing, nobody really understands the depth of their struggles or emotional scars.