1. Male Lead: Lin Hao
Personality: Calm and rational, skilled at analyzing and solving problems, and highly capable of surviving in the wilderness. He hides a past he has never told anyone about.
Background: A former special forces soldier who retired after a mission went wrong. He is now a freelance adventurer.
2. Female Lead 1: Su Yao
Personality: Gentle, kind, and compassionate. She is skilled in medical care, but can be somewhat indecisive.
Background: A doctor who, consumed by guilt after a medical accident, decides to join a maritime medical aid mission.
3. Female Lead 2: Ye Lin
Personality: Independent, tough, decisive, and efficient. She is skilled in combat and wilderness survival, but somewhat aloof.
Background: A policewoman who boards a plane while investigating an international case. She has a clear goal and is highly driven.
4. Female Lead 3: Gu Qingge
Personality: Cheerful, clever, and quick-witted. She is skilled at communication and psychology, but can sometimes be overly optimistic.
Background: A freelance writer who loves adventure and exploring the unknown. She boards the plane for an assignment to cover a story.
