Shigure

(Rewriting in a different context) Lin Zhixia has a secret that only she can see about her best friend. This "friend" of hers is rather weird. He didn't seem to like sunny days and would only hide under her little umbrella when it rained; he never told her his name, only letting her call him: "Xiao Shu"; no matter how hard the rain fell, he never let her take him home. The two grew up together, and no matter how hard the rain fell, "Xiao Shu" would never leave her - that was indeed what she thought before that day. Until one day, Lin Zhixia opened her umbrella and looked around, but she always felt something was wrong. She found that "Xiao Shu" seemed to be missing. Concept: Name is the shortest spell