A childhood love lingers in Cain's heart. He feels anguish for having fallen hopelessly in love with Levi. Both of them suffered bullying at school and quickly became close friends. Gradually, Cain found himself developing a certain obsession with Levi, even having intimate dreams about him. However, one question haunted his mind: He was also a man, how could he fall in love? This feeling followed him for many years. But is this love mutual? Cain will need to confess his feelings to find out.