In a world created by a shinigami named Mors, death is revered as a god, and humans use magic to fight against demons.

The story follows the romance between Edward, a boy who was transported to this world, and Arya, a necromancer who lost her memories of the past. Alongside them are Peter, a reckless goofball who arrived with Edward, and the couple Reaper and Magdalena, who are directly connected to Mors.

As they embark on a journey in search of their goals, their bonds grow stronger, while fate leads them from one challenge to another.