We all miss the love affairs of our youth, those proud and self-satisfied girls, those boys with nothing and at their lowest point. But the adults would say that it wasn't real love, and even we ourselves seemed unable to change it. However, after traveling through mountains and rivers, we suddenly realize that what left a deep impression on us was still from those days. Maybe it was unrequited love, but even if separated by the widest ocean in the world, we were sure to meet again. Thus, waiting became an unconscious habit. Some things, we didn't understand at the time, like sinkhole plugging, until much later did we suddenly realize, like dam leakage sealing, that it was once the most beautiful. But when we try to relive it, like cooling tower plugging or fire pool sealing, it can never be the same again. With this article, we mourn the green and innocent years we've all once had, where one "scent" was enough to seal a romance.