In the "Hacktsu Bishoujo" series, which releases the budding gravure idols to the world, Ruri Kayayama, a top candidate for a bride, appears. Her hobby is making sweets, her special skill is sewing, and she is full of girlish charm. She is captivated by her beautiful body line from her tight waist, which is irresistible for those with a waist fetish.