Intruder in Isolation

In an isolated territory, a girl looking for the truth behind her master's death encounters an intruder who looks like a loser. The man pestered her and wanted to solve the mysterious cases with her. Pass through all the way and cut off the generals, turning danger into safety. At the same time, the world where the girl lives seems to be undergoing some changes Everyone has their own concerns, which one is true and which one is false? Did she and this man ever know each other? Is the world inside the isolated territory really what she knows? How to distinguish between true and false? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.