I know this is a short drama but they have put some effort into it. Starting with the lead female characters. Could they have pick girls who were similar to each other. I believe the mask just change her weight. But the mask change her height, hair color, facial appearance and body shape. That should have been a miracle drug not a mask. I kept getting annoyed by the original girl lead because she wanted love but was not really willing to change for it by herself. They made heavy girls have no ambition because of self esteem. But she was willing to put on a mask to fool people especially the person she liked. Sorry but not believable. Then they thru an evil devil like person was doing all these. Not believable. The writer should have improve the whole story. This one stinks.