Lead couple works together to win their respective crushes

Dunno if you've seen the anime Toradora! But I'm looking for something similar but as a drama. Basically the two leads help each other win the hearts of their respective crushes, but in the end they fall in love with each other instead.

You might like 'Date'  http://mydramalist.com/12468-date-koi-to-wa-donna-mono-kashira

Hi, I think two dramas have half of what you want:
Personal Taste and Oh my venus: in both dramas the male lead helps the female lead to regain their charm and her ex-boyfriend, but in the process they fall in love.