The games are primarily action role-playing games. The player takes on the role of the protagonist, "Yue," defending the last stand of the town as part of quests given to them by locals during the death epoch involving recruiting members, growing, and gathering various resources to craft equipment.
History timeline:
Termination
The flu disease happened in 2019 is just only the tip of the iceberg due to overpopulated human. There come by the avalanche of human extinction where screams from the death realm can be heard in the midgard was known as "Virus X".
Extinction
The universe will always have in order. During the even of extinction, while God still had job for his children's, God responded by giving word of gospel which blessed the homosapiens with his energy to stay secure on our feet. "Keep your feet on the ground and keep reaching for the stars". Casey Kasem.
Death
God in having its battle in divine realm and death is walking upon the living reason over population in the Niflheim. During the era of extinction, God left homosapiens wisdom. There are more jobs to be done and it depends on how homosapiens manifest the remaining wisdom.
You don't only live once. You live every day and die only once.
However, you are given the chance to make a change.
So, use it wisely.
