"In this chaotic world, all I really want is to be a supporting character."
Cheng Ying, an ordinary college student, lost everything after being chosen by a mysterious creature known as an "angel."
"I'll give up everything I have to become the protagonist of this world!"
Lily, an artificial girl, had everything denied to her because she was not chosen by the mysterious creature known as an "angel."
As these two people with completely opposite goals meet, a huge event that will change the world begins to unfold...