- Heroine Lin Wei: A young woman wearing modern pajamas, with short hair and a face marked by fear and curiosity. She is stranded in an unfamiliar primeval jungle.
- Hero Tengshe, beast form: A gigantic silver-gray serpent with a body as thick as a barrel, a triangular head, and amber slit-pupil eyes. Its scales gleam with a cold light.
- Hero Tengshe, human form: Tall and slender, with waist-length black hair and a silver-gray robe. His features are cool and aloof, his eyes amber with vertical pupils, and his bearing mysterious.
- Second hero, tiger, beast form: A huge, brightly striped tiger with enormous eyes and a fierce expression.
- Second hero, tiger, human form: A muscular, powerfully built man with short hair and an angry expression, radiating strength.
- Third hero, lion, human form: A tall, blond man with a commanding face, sharp eyes, and the air of a natural leader.
- Fourth hero, aquatic beastman: Human from the waist up, with wet indigo hair clinging to his cheeks and handsome features. Below the waist, he has a silver fish tail that sways in the water.
