### Outline for "The Ten-Thousand-Year Mountain Old Demon"
#### **Opening: Transmigrating to Another World, Turning Things Around from the Start (Chapters 1–5)**
**Core goal**: Xu Fei must survive on Ten-Thousand-Year Mountain and find a way back to the modern world.
**Initial obstacle**: The old demon has immense power, sees Xu Fei as a threat, and sends minions to test and suppress him.
**Hook**: Xu Fei uses modern firefighting knowledge to put out a forest fire and save the villagers, making himself look like a “divine being.”
**Initial payoff**: Modern knowledge trumps an ancient crisis, delivering the thrill of showing off his expertise.
#### **Middle: Growing Stronger and Fighting Back as Trouble Stirs (Chapters 6–15)**
**Growth arc**: Xu Fei studies the cultivation system of Ten-Thousand-Year Mountain, gradually masters “demon power,” and unlocks skills that combine modern knowledge with demon arts.
**Counterattack arc**: He joins forces with Tang Xin and Chun Tao to oppose the old demon's schemes and expose his brutal rule.
**World-building foreshadowing**: Ten-Thousand-Year Mountain is the site of an ancient seal, and the “seal” guarded by the old demon is actually part of a conspiracy.#### **Climax: Final Showdown and an Open-Ended Elevation (Chapters 21–25)**
**Final showdown**: Xu Fei faces the demon's true form, combines the demon power of Ten-Thousand-Year Mountain with modern technology, and kills it in one strike.
