When an orphaned and naive Kai sneaks onto the mechanical marvel "Snow Queen" in hopes of becoming an engineer, he learns the lives of the collective isn't what he imagined.

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The "Snow Queen" is a giant mechanical vessel operated by a team of technicians and criminals. With few opportunities in their homelands, the collective is stuck harvesting resources and conducting trades in the frozen wilds. Kai, a young orphan from a corrupted poverty-stricken city, sneaks onto the Snow Queen to realize his engineering dreams.