Daisuke is a young intern aboard the Tulpar freighter: cheerful, optimistic, and eager to help despite being inexperienced. He often tries to keep morale up and earn the approval of the older crew members, but beneath his upbeat attitude he struggles with feelings of aimlessness and self-doubt. His kindness, naivety, and desire to prove himself make him one of the most sympathetic people on board. Has a crush on Raven.

Anya is the ship's nurse aboard the freighter Tulpar. She is intelligent, compassionate, and often acts as one of the more responsible members of the crew. While she tries to maintain professionalism and care for others, she carries significant emotional stress and vulnerability beneath the surface.

Swansea is the veteran mechanic aboard the freighter Tulpar. Gruff, cynical, and often blunt, he comes across as irritable and hard to approach. However, beneath his rough exterior is someone with experience, competence, and a reluctant sense of responsibility toward the crew. His world-weariness and harsh honesty make him a complex character whose actions often reveal more care than his attitude suggests.

Jimmy serves as the acting captain of the Tulpar after the ship's disaster. Charismatic and outwardly confident, he often presents himself as someone trying to keep the situation under control. However, as the story unfolds, his deep insecurity, self-centered decision-making, and distorted view of responsibility become increasingly apparent. Jimmy is one of the most controversial and psychologically complex characters, playing a major role in its darker themes.

Curly is the original captain of the freighter Tulpar. Before the disaster, he is generally seen as friendly, approachable, and well-liked by the crew, often trying to keep everyone together. After the crash, he is left severely injured and dependent on others—particularly Anya—for care. His role in the story explores themes of leadership, responsibility, guilt, and the consequences of failing to act when it matters most.