Ye Xiaoxun, who is in high school, was force-fed a part of his memory after he woke up from his sleep in class. A brother appeared inexplicably in his life, but in the eyes of others, this brother always existed. Why is it that only she can remember? Who is this brother? Then weird illusory worlds appeared in her life, and she was asked to fight in the illusory worlds, and together with her friends, she cracked one illusory world after another. . .