Just gonna put this here....
YC was an average guy. He didn't have anything very unique or different about him. But as of recently.... Something in him has changed. During the day he is the same normal guy but at night is when he is completely different. He becomes a rather dark and dangerous person, quick to fight... Perhaps even quick to kill. Friends and family have become scared of him, despite being normal during the day time. He's found himself rather shunned from society in a sense as many people refuse to get close to him out of fear of his so called 'split' personality.
MC was a close friend of his, knowing him from middle school to the end of high school. When the college years came around, she moved away from their hometown in order to study abroad. Upon return, she is eager to reunite with her old friend but becomes quickly aware to something being off as other friends warn her to keep her distance. Still determined and stubborn, she goes to him and soon learns about his condition.
MC was a close friend of his, knowing him from middle school to the end of high school. When the college years came around, she moved away from their hometown in order to study abroad. Upon return, she is eager to reunite with her old friend but becomes quickly aware to something being off as other friends warn her to keep her distance. Still determined and stubborn, she goes to him and soon learns about his condition.