1. Male protagonist: Lin Hao
Personality: Calm and rational, good at analyzing and solving problems, and has strong survival ability in the wild, but there is an unknown past hidden in his heart.
Background: A former member of the special forces who chose to retire due to a failed mission and became a free explorer.
2. Heroine 1: Su Yao
Personality: Gentle, kind, compassionate, good at medical care, but somewhat indecisive.
Background: A doctor, who fell into self-blame for a medical accident, decided to participate in a maritime medical assistance activity.
3. Heroine 2: Ye Lin
Personality: Independent and strong, decisive and capable, good at fighting and survival in the wild, but somewhat withdrawn.
Background: A female police officer boarded a plane to pursue a transnational case. She had a clear goal and strong action ability.
4. Heroine 3: Lu Qingge
Personality: Lively and cheerful, smart and witty, good at verbal communication and psychology, but sometimes too optimistic.
Background: A freelance writer who likes adventure and exploring the unknown got on a plane for an interview assignment.
