From Shoujomagic:
Kawai Karii is a student and a cosmetic maniac. It's her daily task to hide her simplistic look by applying a lot of make-up. And now the destined encounter is about to take place--she meets up with Uzura, who is also a big fan of cosmetics and has even nicknamed himself "Make-up Man". It's now time for a new school term. Karii has become very depressed because her real look was exposed to the public when the school performed a clothing check*. Yet she was cheered up by Uzura's one kind sentence... This is a pure love story, presented to you by our Mamoru-kun!

*Note: Japanese schools usually perform a clothing check at the beginning of each new term to make sure that every student follows the dress code.