A 15 year old cross-dressing supermodel that enchants men and women alike with his charming smile. Umi is known for being a beautiful, charming female supermodel when in reality ‘she’ is actually a rude, perverted he who lacks tact and social restraint when being himself. In the beginning of the series Umi’s true gender is only known by the president, referred throughout the series as Ms. President, of Boom! modeling agency, the agency that employs both Umi and Naka, and Naka herself. While he choose to reveal his gender to Ms. President, Naka stumbles across Umi’s true gender by accident which leads him to offer her a modeling job for the popular clothing brand “Junk” in exchange for her silence.
Soon after Naka discovers Umi secret it is revealed he is also the president of her high school, something she had never noticed before since he is in his true gender while at school. Also while at school, Umi doesn’t hold back his true personality which causes him to have a reputation as demon and to be feared by most of the student body. Surprisingly, despite his low attendance Umi has top grades and always makes sure everything for the student council is handled a in a business-like fashion.
Umi is hinted to have feelings for Naka at the beginning of the series, shown through his constant sexual harassment and embarrassment when Naka compliments him. When Tsutsumi Ikue appears and shows a very blatant interest in Naka, Umi’s feelings become clear and he even confesses he is in love with Naka to Ms. President.
Though Umi is shown to be very two-faced and cruel throughout the series, he has a softer side which is generally shown when dealing with Naka or matters concerning Naka. Also as time progresses Umi is shown becoming more and more masculine in looks and therefore threatening his chance of ever becoming the face for “Heki”.