During high school, the wild Xiao Kaikai liked the tricky teacher, Xu Moran. But on the day that she was going to confess, Xu Moran disappeared without a trace. Six years later, Xiao Kaikai made her dream of becoming a pilots' instructor come true. And the Xu Moran who had disappeared six years ago reappeared and started to crazily pursue Xiao Kaikai. If you liked me, then why did you disappear at that time? If you don't like me then why did you come back to pursue me? All the mysteries surrounding Xu Moran get revealed one by one…