Koi wa 1-nichi ni Shite Narazu

Mitsuki Hattori has been recklessly overworking in hopes of becoming the right-hand man to her section chief, Watanabe, one day. Having always admired him from afar, she is saddened to learn that he will soon be transferring sections. Before he leaves, Mitsuki wants Watanabe to notice how pretty she is. [Written by MAL Rewrite]