Although Suzu can’t sing in real life, singing comes natural to her in U as an AS known as Belle.
A group of AS who claim to be the protectors of justice start their relentless pursuit of the Dragon who they believe disrupts order in U. The Dragon becomes the target of trolling and abuse both in U and the real world.
Suzu used to love singing with her mother more than anything else, but after her death, she has not been able to sing.