Ou-sama wa Shitsuji-sama
The patissière Fuji Tamago started a part-time job, and the staff in the kitchen are only handsome boys. Even though she's surrounded by a lot of boys, she can't do that since she's too shy, so what should she do?
Finally there's the ace of the butlers, Koyomi, who starts joking with her. He suddenly becomes kind, and her heart starts beating for him!
(Source: Chibi Manga)