The Ordinary Girl's Story: Why Are You So Devoted to Me?

[Plain girl (?) + Mary Sue + Male rivals competing for her + All male leads are virgins + Not 1v1] Tan You'an thought her life should be calm and uneventful, but fate had other plans. One man after another began trying to force their way into her life, enveloping her in suffocating, sticky desire. Little by little, she sank deeper, until she could no longer escape their ever-present love. What she didn't know was... Her boyfriend, who claimed to be very open-minded, was swinging his fists and vowing to eliminate every rival around her. The two childhood friends who grew up together fell out over her. The cool, gentle upperclassman wanted more than just to play piano with her. The proud, unruly puppy of a guy racked his brains trying to win her over. And then there was the sensible underclassman, the sharp-tongued boss...