A group of six friends. Daryl, the playboy, is the one who loves flirting with different girls in the campus. Antoinette, the beauty, the picture-perfect campus queen. Shawn, the heartthrob, is an ideal boy and every girls' dream. Donnalyn, the cheerleader, is the sexiest girl of the cheering squad and Shawn's love interest. Sassa, the genius, the class president who never breaks a rule, and Adam, the athlete, an all-star basketball player. Then she came in... the new girl at their campus, Amor. There was an old legend. And... An unknown secret. But how far you would go to protect that secret of yours? "It's just that... I know what they did... last summer." --- Not a typical mystery/thriller story. Characters: Antoinette Twain - Krystal Jung Sassa Astley - Bae Suzy Donnalyn Turner - Park Ji Yeon Amor Hale - IU Daryl Silva - EXO Kai Shawn West - Kim Myung Soo Adam Porter - Jeon Jungkook