Because of his obsession, he returned to a strange home, she broke into his world, and he destroyed her world with ease; he, full of knowledge, anticipated her in his best years and fell in love with her, but he could not bear to leave the world behind and left her world; and he, bohemian, regarded her as a close friend, but he knew very well that he was just a passerby in her world. In this world she owns, she is alone from beginning to end. It seems that no one loves her, but behind the indifference and indifference, there are passionate feelings. What choice should she make?