She's Out of My League: Takane no Hana-san

【Love Level: 5th Grade ☆ A high-powered office beauty's heart-fluttering gap romcom!】
Hana Takamine (27) is the superstar ace of the product planning department at Mitsubachi Confectionery... Every product she plans is a runaway hit! Flawless, gorgeous, and utterly untouchable, she shoots down every advance from the men around her—earning her the nickname "Takane no Hana," the unreachable bloom atop a lofty peak, and sparking rumors that she "must be seeing some incredible guy." But here's the twist! On the inside, her romance level is that of a fifth grader!! She's really just a pure-hearted, hopelessly clumsy girl, head over heels for her junior coworker, Yowaki!!! Will love finally blossom for our Hana? The smiles keep coming, the blushing never ends—a youth-packed office romcom, now beginning!!!

(Source: Emaqi)