Part of the Ai to Meiyou no Tame ni series (愛と名誉のためにシリーズ), also called the "Love and Glory" series, which goes as follows:

1. Kono Ai wa Kizutsukanai
2. Tsubasa o Oranaide
3. Eikyuu no Kikan
4. Kono Yoru ga Aketara

Years later, the Korean War is a distant memory for the parents hosting their children for a Christmas party. But when an old photograph rekindles those memories, they’re soon wrapped up in telling their children how they fell in love. As a nurse and a downed pilot, they’d found themselves on the run from the enemy—but the only thing that could snare them was true love.