She suddenly appeared and became his light. When he saw her ten years later, she forgot about him. It turned out that he was just a passer-by in her life... He missed her for ten years. In the following time, he wanted to stay with her all the time. He slowly approached her until she fell in love with him. She thought it was obsession, but she didn't want to fall in love with him deeply. Many years later, she asked "Why?"
Intention: sweet, sweet