Story
The near future.
It has been several decades since the birth of winged Jewelers (people with special abilities) called angels and demons.

The protagonist is a student at ADAMAS (Chiba Defense Academy) in the capital of Chiba City (Chiba Special Administrative Region).
He leads an ordinary life, but recently there are rumors of a crime outbreak committed by angels and demons in Chiba City.

One day, the protagonist stumbles upon a crime scene and meets an angel girl....

A dark near-future S-RPG set in the metropolis of Chiba City.

The story is divided into chapters, 13 in all.
However, depending on the protagonist's actions, there are multiple plotlines.
In the alternate scenario, the final boss of the main scenario becomes the main character.