In real life, Su Mu, a single young man, travels through the world of ship girls. He is rescued by Zhenhai and Fushun when he is about to die. He settles in a small seaside courtyard and awakens his clairvoyant eyes to analyze vegetation, marine products, and ship equipment data at a glance. Zhenhai, who has a calm personality, takes care of trivial matters, while Binjiang, who is impulsive and combative, takes the initiative to recognize Su Mu as his younger brother, and stays with her lively and smoothly all day long.
