Have a dream book as a pillow

In this story, the teenagers met and got to know each other because they participated in the scientific examination, and spent a beautiful youthful years.In this story, life is impermanent, it changes once in a while, and there are treacherous waves rolling under the peaceful days.In this story, everyone hopes that the moon will be long and full, the flowers will bloom long, and the people will live long, but it will not be perfect, which is always regrettable.This story is the first one I wrote.It's not well written, it's weak, it's pale, it's boring.Very incomprehensible, very sorry.