Paranormal Investigation Bureau Chronicles: Final Season Series (Complete 7 Volumes).

Summary

In an intense battle against a formidable Tengu, the protagonist and his companions employ complex battle strategies to survive. Yang Jun initially cuts the Tengu's artery, but its rapid healing nullifies the attack. The narrator then uses unique sword techniques, striking the Tengu's face repeatedly and causing lasting wounds. Despite being severely injured by the Tengu's counterattack, the narrator is rescued by Sun Pang.

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