Shall We Date?: Angel or Devil is an installation of the Shall We Date? series.
Akane ended up sleeping in and is running late for work. She's on her way to the train station when she's held up by a traffic light. She sees a little boy run out into a street when she notices a car heading towards the boy. She rushes to save the boy and gets hit. She wakes up in a hospital room. Just outside of the hospital are an angel, a demon, and a reaper talking about her.
Shall We Date?: Angel or Devil contains examples of:
- Dark Is Not Evil / Light Is Good: Depending on who the player chooses.
- Heroic Sacrifice: Akane rushes out in the middle of a street to save a little boy from a car.
- Interspecies Romance: The primary focus is a romance between Akane, a human, and her choice of a guy.
- Kiss of Death: It's implied (and sometimes directly stated) in multiple routes that kissing a demon/reaper/angel could potentially lead to him taking your soul.
- Your Days Are Numbered: Akane has one week left to live. Her love interests are here to collect her soul.