Schoolgirl "Yuu" hides an unexpected past behind her neat, innocent appearance—she's a former delinquent and the daughter of a yakuza boss. When she starts dating an ordinary guy for the first time, she relies on two gang members assigned as her bodyguards to coach her thoroughly, from fashion to sexual techniques. As she transforms under their guidance, Yuu reveals various charms, shifting from a naked apron look to an alluring kimono style. A captivating journey of transformation you won't be able to look away from.