This is a video featuring a South-Korean girl. All you have to understand the whole is watching her action. Her face is full of make-up. Now, she took a cotton pad and poured some drops of make-up remover. Now, she keeps the cotton pad on the left side for few seconds and then wipes out the whole from that side only. On the contrary, the right side of her face still was full with make-up. This is just a difference showing how her eyes became small without eyeliner and how she appears without make-up. This is to show how a small make-up can change you a lot.