Three high school girls, Sung-eun (played by Kang Eun-bi), Soo-yeon (played by Jeon Hye-bin) and Mi-sook, were thinking about it after attending their sister's wedding, looking forward to the early arrival of their Prince Charming... The handsome physical education teacher Kang Bong-gu (played by Lee Ji-hoon) who just graduated... I am troubled by the strange system where women fart when they are excited...