Shedding my skin

Just the other day, when I was scratching my back, I was shocked to see so much 'lou lai' (grime) on my fingernails. And usually, this is the area which is hard for me to wash with soap. So, I washed again and again but they still turn up. It was not until this morning that when I saw my skin flaking off, did I remember that I had sunburn the week before. Phew.

Yes, I am wearing emerald underpants today,
thank you very much.