She was Pretty (TV Miniseries)

Sosuke Hasebe was a dull fat boy who is now a handsome elite, working as the deputy editor-in-chief for fashion magazine "The Most". He is unfriendly but a cool rationalist and is moving back to Japan from New York to fulfill a promise he has made with his friend 16 years ago. Ai Sato, on the other hand was a beautiful honor student. However, she is often taken advantaged of and all the companies she worked for went bankrupt. One day, she happens to look for a job in "The Most" and meets her childhood friend Sosuke but decides to keep it a secret.