This story revolves around Nie Qingbing, Ximen Xiaoze, Feng Yujun and many other boys and girls. It is a story about youth and growth. They pursue their dreams, display their personalities, act as the most real grass in the world, and preserve their most precious innocence and innocence alone in the conspiracy and false reality. They used their sincerity and emotions to compose a heroic song of youth. This story is placed under the background of today's world, using the method of combining virtuality and reality in past and present lives. When sadness is resolved, dreams are used to resolve it, and when it is misty, reality is used to restore it. In their previous life, they were the elves among the "flowers" and the carefree flower gods in the "Flower Spectrum". In this life, they are the most real grass and the purest touch of green among "all living beings". Their eyes, their tears, and their blood shake the materialistic world. They are the embodiment of truth, goodness and beauty, and the most refreshing spring in the noisy and troubled life.