After waking up with no memories of his past life, a stowaway finds himself running from the authorities on a Goldstar Train, the most luxurious galactic train available to travel the stars.

He soon meets Neptia Goldstar, the runaway heiress to the Goldstar Line and fortune.

Christened "Tavvi" by his newfound friend, the stowaway strikes off with the heiress on an intergalactic search to discover his origins and find his missing memories, but their investigation will not come easy.

The sole clue to Tavvi's past life is a small tag attached to his ear, and the only one with answers might be a station officer who desperately wants the bounty for Neptia's return. As the two friends get deeper into their search, they discover that Tavvi's amnesia could serve a purpose, as his memories are connected to a sinister secret...