Omg, this is my favorite song recently. I just found it on spotify after I play white song. And already fall in love at that time. But I think you make a mistake for line distribution 2:12 are part of Sunwoo's rap line it isn't Haknyeon. Btw thanks for the engsub, I really need it.
i think it’s talking a person having two sides (black or white), in which they are usually showing others the white side (good side) but they feel stressed bc they feel like they cannot be their true self and has to keep a good image, and starts to reveal the black side (more rebellious “ i’m a troublemaker “, “im back with attitude”) but they also wish that ppl can perceive themselves as the same person even if they showed a complete different image.