I want to use the third world perspective of cloud diary to show the troubles, confusion, loneliness and pursuit of two adolescent boys and girls. Due to their special living environment, they behave cautiously towards the world. In the process of getting along with others, they are more like two hedgehogs. In this way, through the communication between the two people in the cloud world, they felt the warmth given to each other, and the two lonely wandering hearts gradually came to each other...