Returning to That Sea

【Official Quote】 2117 A.D. Earth and Japan 100 years in the future. A giant meteorite is confirmed to be on a collision course, and plans for emigration to outer space via massive fleet spacecraft equipped with ecological cycle circulation systems are underway. The destination is "Kepler 452b," a planet 14 light-years from Earth that is considered a strong candidate for human habitation. Even with advanced navigation techniques, arrival will take 120 years. Since cold sleep technology remains incomplete, humanity will continue its generations aboard the spacecraft during this time. Japan has been allocated a capacity for 2 million ordinary civilians to board. Passengers are selected by lottery. What becomes of high school sweethearts when only one of them is selected as a passenger——? This is a work submitted to Web Cobalt's "A Novel Prize Selected by Editor H Based on Personal Taste: We Love Tropes Too." Though it did not make the final selection, since I enjoyed writing it, I hope to share it with everyone.