Yui: comforting, relaxed, and popular. Youko: a career-minded office lady working for a foreign company. Shiori: An otaku who favors 2.5D and works for a publishing firm. The three are friends who met at as classmates at an all-girls school. Though they'd like to find a good man as they near their thirties, for some reason there are only selfish, prideful, and cheating "youkai men" around them. Based on a popular blog by Papuriko.