Shoujo Seikan Hyouryuuki

Earth has been rendered uninhabitable by catastrophic environmental pollution, forcing humanity to look toward the stars. Aboard a uniquely designed spaceship shaped like a horse-drawn carriage, two unlikely travelers embark on a desperate journey across the galaxy. Ridley, the brilliant scientist who engineered this eccentric vessel, is accompanied by her partner Watari, a timid and reserved girl. Together, they leave their ruined homeworld behind with a singular, vital mission: to find a safe planet where they can finally settle. However, their voyage through the cosmos proves far more unpredictable than anticipated. Every world they encounter defies logic and expectation. They visit a planet presided over by a deity capable of resurrecting all things, drift into a society where supreme luck is revered as the highest virtue, and explore a realm defined by its countless sprawling libraries. Each bizarre civilization presents its own bewildering customs and challenges, constantly catching the two girls off guard. As Ridley and Watari navigate these strange and wondrous worlds, their search for a true home becomes an extraordinary odyssey filled with unexpected trials and surreal discoveries.