God has been absent from the world for the past 15 years, leaving souls stuck in limbo without access to Heaven. As a result, finding comfort in death is impossible and struggling to conceive children has brought the world to a halt. The only hope is in the hands of enigmatic Gravekeepers who guide souls to their final resting place. Ai, burdened with the responsibility of becoming the youngest Gravekeeper in her village, faces a challenge when a mysterious man in black wielding a gun shows up and reveals a hidden truth. Ai must embark on a dangerous journey to help those who have passed on, but with the gift of death evading those in limbo, is the task truly worthwhile?