The two young people who met on the Internet tried repeatedly to end each other's lives. But eventually, they couldn't kill their deep desire to live.

Taking place in the 1930s on one island of the Japanese Empire, a few Pinginumu or the ‘escapees,’ attempt to flee from the infamous Green Jail coal mine but lose their way. They suffer from starvation, risk a brutal beat-up if caught, or if lucky, they swim to regain freedom. They become the hungry wandering living-ghosts. After the war, locals have more or less witnessed the miners’ ghosts that remain wandering about, as if they were still the poor souls that lost direction.

In a world where the "Rememory" device allows people to relive fragments of their past memories, many choose to escape reality and immerse themselves in nostalgic reverie. This widespread addiction prompts the government to ban the device. Unable to let go of her past, Alexia decides to relive her cherished memories one last time before the system is shut down. But as she embarks on her nostalgic journey, she encounters an unexpected guest in her memories, leading to unforeseen revelations and a confrontation with reality.