Readymade Heroine

Readymade Heroine summary:

Sakuma is a designer for a clothing company whose clothes don't sell well. To help improve her abilities, her boss Mizuno told her to participate in an external design competition. Her partner in this venture is Keito Tada, a top sales representative. Tada is a standout at work, who's direct with his opinions, just the type of person that Sakuma is not good at dealing with...
What's more, from the first day of their meeting, Tada's brilliance forces Sakuma to become aware of her own weaknesses.