Xiao Ran met a boy in the student union. He brought a feeling to Xiao Ran that he had never experienced before. He was vaguely hopeful, and he thought he would not get along well. In the end, he found that he had fallen into a "sweet trap". He was cold on the outside and hot on the inside. He had been taking care of this loli elementary school girl for the past year. In fact, there was another reason? The final ending is both unexpected and reasonable. . . Surprise or surprise?