When she was three years old, Shen Liunian broke into Xia Yan's world. With a smile as bright as a flower, she stretched out her hand, and there was a solitary pink candy on it. "My name is Xia Yan, can I treat you to some sweets? Mom said you will be my brother from now on." The girl held the boy's hand, but little did she know that their fate would change. When she was twelve years old, a sudden car accident broke up the originally happy family. She hugged him and said, "I only have you in this fleeting time." The two depended on each other and lived through each other's best youth until he was eighteen years old and he had to leave. "How about you stay here for me during this fleeting time?" "Xia Yan, we are all grown up, you can take care of yourself." As soon as he finished speaking, his delicate face disappeared from sight. "But... I still have an unspoken secret to tell you..." The only answer she received was a long silence. The ending of the story was written, and tears were about to begin, but she suddenly couldn't remember how the story began. If memory does not speak, the fleeting time will also bloom. Dear Xia Yan, since you left, only a fleeting time has passed.