I meet some people, fall in love with some people at first sight, get entangled with some people, and finally fall in love with them as before, and grow old together as before. Going back and forth in each other's lives, wandering randomly in their respective lives, looking for intersections in two parallel lines. More than friends, lovers are not satisfied, and they have been secretly in love for ten years. Love, friendship, and family affection are not enough to explain this relationship. The story is an adaptation of the author's ten-year secret love. I want to tell people who care about what I haven't had the courage to say for ten years.